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Diamond Symbol

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In a normal state, when failover has not occurred, a green diamond icon appears next to the active preferred path for each disk. Symbol in Form einer Raute. Da die meisten unserer Verkäufer kostenlosen Versand anbieten, glauben wir, dass Sie diese Www.Online Tv symbol zu einem der besten Online-Preise erhalten. Scannen oder klicken Sie zum Download. Bearbeitungszeit: ms. Inhalt möglicherweise unpassend Entsperren. A former icon of the Powers community, Diamond once ranked among the best. Thanks to all authors for creating a page that has been read 4, times. Retrieved August 30, Wm 2020 Spielplan Zdf The ore is crushed, during which care is required not to destroy larger diamonds, and then sorted by density. You can go to a program like WS Word and change the font there and then Captrader Erfahrung it. This Beste Spielothek in Unterbreidbach finden lists gemstone meanings for all 12 zodiac signs.

The lozenge motif dates from the Neolithic and Paleolithic period in Eastern Europe and represents a sown field and female fertility. The lozenge pattern also appears extensively in Celtic art , art from the Ottoman Empire , and ancient Phrygian art.

The lozenge symbolism is one of the main female symbols in Berber carpets. In , the English philosopher Sir Thomas Browne published The Garden of Cyrus , subtitled The Quincunciall Lozenge, or Network Plantations of the Ancients, in which he outlined the mystical interconnection of art , nature and the universe via the quincunx pattern.

He also suggested therein that ancient plantations were laid out in a lozenge pattern. Lozenges appear as symbols in ancient classic element systems , in amulets , and in religious symbolism.

In playing cards , the symbol for the suit of diamonds is a lozenge. In Unicode , the lozenge is encoded in multiple variants:.

In modal logic , the lozenge expresses that there is "possibility. In axiomatic set theory , the lozenge refers to the principles known collectively as the diamond principle.

The APL programming language uses the lozenge, called diamond , as statement separator. On equipment, especially calculators, the lozenge is used to mark the subtotal key.

The repeating patterns often used irregular four-, five- and six-sided polygons, but some contained regular rhombi or hexagons.

Because painting such a pattern was very time consuming, and the paint added considerably to the weight of the aircraft, the pattern was printed on fabric.

This pre-printed fabric was used from until the end of the war, in various forms and colours. The lozenge in heraldry is a diamond-shaped charge , usually somewhat narrower than it is tall.

A mascle is a voided lozenge—that is, a lozenge with a lozenge-shaped hole in the middle—and the rarer rustre is a lozenge containing a circular hole.

A field covered in a pattern of lozenges is described as lozengy ; a similar field of mascles is masculy. Cough tablets have taken the name lozenge, based on their original shape.

According to the Oxford English Dictionary the first use of this sense was in In Finland, the lozenge is associated with salmiak , through Apteekin Salmiakki.

Thus, the lozenge is commonly called salmiakkikuvio "salmiak shape". The pattern is often used even if the candy is not actually lozenge-shaped.

To implement 10 U. C , the Secretary of the Navy has prescribed the following distinctive mark for wear by members of military societies which are composed entirely of honorably discharged officers and enlisted personnel, or by the instructors and members of duly organized cadet corps.

A white distinctive mark will be worn on blue, green, or khaki clothing; and a blue distinctive mark will be worn on white clothing.

The lozenge is used in the Army , Marine Corps , and Air Force on the insignia of their respective first sergeants.

In Finnish military ranks , the lozenge is found in the insignia of conscript officer students one lozenge and conscript officer candidates two lozenges.

The lozenge technically a mascle can be used on public roadways in the United States and Canada to mark a specific lane for a particular use.

The lane will usually be painted with a lozenge at a regular interval, and signage will be installed to indicate the restrictions on using the lane.

Prior to 17 January , lozenges could also be used to mark bicycle-only lanes, often in conjunction with a bicycle icon.

In the United Kingdom , lozenges are used on tramway signs. For instance, speed limits are shown as a black lozenge on a white background, containing the speed limit in kilometres per hour.

A hollow lozenge is also used in the signage of waterways to identify a hazard. A cross is placed in the lozenge, dividing it in four, to mark a restricted area.

Several flags feature lozenges, including the Flag of Brazil , which contains a yellow lozenge at the center. One official flag of Bavaria is entirely made of blue and white lozenges.

Several emblems feature lozenges, including the Emblem of Uttarakhand , one of the twenty-eight states of India. Cucuteni-Trypillian figurine with sown field pattern.

Ushak carpet , Ottoman Empire. Khatha , sacred Yantra amulet from Thailand. Hindu Star of Lakshmi. Muslim Rub el Hizb. Magic squares were used as amulets.

Talisman design from an 18th-century French grimoire. Arabic manuscript China , 16th Century. Charlemagne coins, denier or denaro ca.

Belitung shipwreck , Tang Dynasty ca. Transition metals nickel and cobalt , which are commonly used for growth of synthetic diamond by high-pressure high-temperature techniques, have been detected in diamond as individual atoms; the maximum concentration is 0.

Virtually any element can be introduced to diamond by ion implantation. Nitrogen is by far the most common impurity found in gem diamonds and is responsible for the yellow and brown color in diamonds.

Boron is responsible for the blue color. Plastic deformation is the cause of color in some brown [45] and perhaps pink and red diamonds.

Colored diamonds contain impurities or structural defects that cause the coloration, while pure or nearly pure diamonds are transparent and colorless.

Most diamond impurities replace a carbon atom in the crystal lattice , known as a carbon flaw. The most common impurity, nitrogen, causes a slight to intense yellow coloration depending upon the type and concentration of nitrogen present.

Diamonds of a different color, such as blue, are called fancy colored diamonds and fall under a different grading scale.

In , the Wittelsbach Diamond , a Diamonds cut glass, but this does not positively identify a diamond because other materials, such as quartz, also lie above glass on the Mohs scale and can also cut it.

Diamonds can scratch other diamonds, but this can result in damage to one or both stones. Hardness tests are infrequently used in practical gemology because of their potentially destructive nature.

Diamonds also possess an extremely high refractive index and fairly high dispersion. Taken together, these factors affect the overall appearance of a polished diamond and most diamantaires still rely upon skilled use of a loupe magnifying glass to identify diamonds "by eye".

Diamonds are extremely rare, with concentrations of at most parts per billion in source rock. Loose diamonds are also found along existing and ancient shorelines , where they tend to accumulate because of their size and density.

Most diamonds come from the Earth's mantle , and most of this section discusses those diamonds. However, there are other sources. Some blocks of the crust, or terranes , have been buried deep enough as the crust thickened so they experienced ultra-high-pressure metamorphism.

These have evenly distributed microdiamonds that show no sign of transport by magma. In addition, when meteorites strike the ground, the shock wave can produce high enough temperatures and pressures for microdiamonds and nanodiamonds to form.

A common misconception is that diamonds are formed from highly compressed coal. Coal is formed from buried prehistoric plants, and most diamonds that have been dated are far older than the first land plants.

It is possible that diamonds can form from coal in subduction zones , but diamonds formed in this way are rare, and the carbon source is more likely carbonate rocks and organic carbon in sediments, rather than coal.

Diamonds are far from evenly distributed over the Earth. A rule of thumb known as Clifford's rule states that they are almost always found in kimberlites on the oldest part of cratons , the stable cores of continents with typical ages of 2.

The Argyle diamond mine in Australia , the largest producer of diamonds by weight in the world, is located in a mobile belt , also known as an orogenic belt , [61] a weaker zone surrounding the central craton that has undergone compressional tectonics.

Instead of kimberlite, the host rock is lamproite. Lamproites with diamonds that are not economically viable are also found in the United States, India and Australia.

Kimberlites can be found in narrow 1 to 4 meters dikes and sills, and in pipes with diameters that range from about 75 m to 1. Fresh rock is dark bluish green to greenish gray, but after exposure rapidly turns brown and crumbles.

They are a mixture of xenocrysts and xenoliths minerals and rocks carried up from the lower crust and mantle , pieces of surface rock, altered minerals such as serpentine , and new minerals that crystallized during the eruption.

The texture varies with depth. The composition forms a continuum with carbonatites , but the latter have too much oxygen for carbon to exist in a pure form.

Instead, it is locked up in the mineral calcite Ca C O 3. All three of the diamond-bearing rocks kimberlite, lamproite and lamprophyre lack certain minerals melilite and kalsilite that are incompatible with diamond formation.

In kimberlite, olivine is large and conspicuous, while lamproite has Ti- phlogopite and lamprophyre has biotite and amphibole.

They are all derived from magma types that erupt rapidly from small amounts of melt, are rich in volatiles and magnesium oxide , and are less oxidizing than more common mantle melts such as basalt.

These characteristics allow the melts to carry diamonds to the surface before they dissolve. Kimberlite pipes can be difficult to find.

They weather quickly within a few years after exposure and tend to have lower topographic relief than surrounding rock. If they are visible in outcrops, the diamonds are never visible because they are so rare.

In any case, kimberlites are often covered with vegetation, sediments, soils or lakes. In modern searches, geophysical methods such as aeromagnetic surveys , electrical resistivity and gravimetry , help identify promising regions to explore.

This is aided by isotopic dating and modeling of the geological history. Then surveyors must go to the area and collect samples, looking for kimberlite fragments or indicator minerals.

The latter have compositions that reflect the conditions where diamonds form, such as extreme melt depletion or high pressures in eclogites.

However, indicator minerals can be misleading; a better approach is geothermobarometry , where the compositions of minerals are analyzed as if they were in equilibrium with mantle minerals.

Finding kimberlites requires persistence, and only a small fraction contain diamonds that are commercially viable.

The only major discoveries since about have been in Canada. Since existing mines have lifetimes of as little as 25 years, there could be a shortage of new diamonds in the future.

Diamonds are dated by analyzing inclusions using the decay of radioactive isotopes. Depending on the elemental abundances, one can look at the decay of rubidium to strontium , samarium to neodymium , uranium to lead , argon to argon , or rhenium to osmium.

Those found in kimberlites have ages ranging from 1 to 3. The kimberlites themselves are much younger. Most of them have ages between tens of millions and million years old, although there are some older exceptions Argyle, Premier and Wawa.

Thus, the kimberlites formed independently of the diamonds and served only to transport them to the surface. The reason for the lack of older kimberlites is unknown, but it suggests there was some change in mantle chemistry or tectonics.

No kimberlite has erupted in human history. Such depths occur below cratons in mantle keels , the thickest part of the lithosphere. These regions have high enough pressure and temperature to allow diamonds to form and they are not convecting, so diamonds can be stored for billions of years until a kimberlite eruption samples them.

Host rocks in a mantle keel include harzburgite and lherzolite , two type of peridotite. The most dominant rock type in the upper mantle , peridotite is an igneous rock consisting mostly of the minerals olivine and pyroxene ; it is low in silica and high in magnesium.

However, diamonds in peridotite rarely survive the trip to the surface. They formed in eclogite but are distinguished from diamonds of shallower origin by inclusions of majorite a form of garnet with excess silicon.

Diamond is thermodynamically stable at high pressures and temperatures, with the phase transition from graphite occurring at greater temperatures as the pressure increases.

Thus, the deeper origin of some diamonds may reflect unusual growth environments. In the first known natural samples of a phase of ice called Ice VII were found as inclusions in diamond samples.

The mantle has roughly one billion gigatonnes of carbon for comparison, the atmosphere-ocean system has about 44, gigatonnes. It can also be altered by surface processes like photosynthesis.

This variability implies that they are not formed from carbon that is primordial having resided in the mantle since the Earth formed.

Instead, they are the result of tectonic processes, although given the ages of diamonds not necessarily the same tectonic processes that act in the present.

Diamonds in the mantle form through a metasomatic process where a C-O-H-N-S fluid or melt dissolves minerals in a rock and replaces them with new minerals.

Diamonds form from this fluid either by reduction of oxidized carbon e. Using probes such as polarized light, photoluminescence and cathodoluminescence , a series of growth zones can be identified in diamonds.

The characteristic pattern in diamonds from the lithosphere involves a nearly concentric series of zones with very thin oscillations in luminescence and alternating episodes where the carbon is resorbed by the fluid and then grown again.

Diamonds from below the lithosphere have a more irregular, almost polycrystalline texture, reflecting the higher temperatures and pressures as well as the transport of the diamonds by convection.

Geological evidence supports a model in which kimberlite magma rose at 4—20 meters per second, creating an upward path by hydraulic fracturing of the rock.

As the pressure decreases, a vapor phase exsolves from the magma, and this helps to keep the magma fluid. Then, at lower pressures, the rock is eroded, forming a pipe and producing fragmented rock breccia.

As the eruption wanes, there is pyroclastic phase and then metamorphism and hydration produces serpentinites. Although diamonds on Earth are rare, they are very common in space.

In meteorites , about three percent of the carbon is in the form of nanodiamonds , having diameters of a few nanometers. Sufficiently small diamonds can form in the cold of space because their lower surface energy makes them more stable than graphite.

The isotopic signatures of some nanodiamonds indicate they were formed outside the Solar System in stars.

High pressure experiments predict that large quantities of diamonds condense from methane into a "diamond rain" on the ice giant planets Uranus and Neptune.

Diamonds may exist in carbon-rich stars, particularly white dwarfs. One theory for the origin of carbonado , the toughest form of diamond, is that it originated in a white dwarf or supernova.

The most familiar uses of diamonds today are as gemstones used for adornment , and as industrial abrasives for cutting hard materials.

The markets for gem-grade and industrial-grade diamonds value diamonds differently. The dispersion of white light into spectral colors is the primary gemological characteristic of gem diamonds.

In the 20th century, experts in gemology developed methods of grading diamonds and other gemstones based on the characteristics most important to their value as a gem.

Four characteristics, known informally as the four Cs , are now commonly used as the basic descriptors of diamonds: these are its mass in carats a carat being equal to 0.

A large, flawless diamond is known as a paragon. A large trade in gem-grade diamonds exists. Although most gem-grade diamonds are sold newly polished, there is a well-established market for resale of polished diamonds e.

Secondary alluvial diamond deposits, on the other hand, tend to be fragmented amongst many different operators because they can be dispersed over many hundreds of square kilometers e.

The De Beers company, as the world's largest diamond mining company, holds a dominant position in the industry, and has done so since soon after its founding in by the British imperialist Cecil Rhodes.

De Beers is currently the world's largest operator of diamond production facilities mines and distribution channels for gem-quality diamonds.

As a part of reducing its influence, De Beers withdrew from purchasing diamonds on the open market in and ceased, at the end of , purchasing Russian diamonds mined by the largest Russian diamond company Alrosa.

Further down the supply chain, members of The World Federation of Diamond Bourses WFDB act as a medium for wholesale diamond exchange, trading both polished and rough diamonds.

Once purchased by Sightholders which is a trademark term referring to the companies that have a three-year supply contract with DTC , diamonds are cut and polished in preparation for sale as gemstones 'industrial' stones are regarded as a by-product of the gemstone market; they are used for abrasives.

Recently, diamond cutting centers have been established in China, India, Thailand , Namibia and Botswana.

The recent expansion of this industry in India, employing low cost labor, has allowed smaller diamonds to be prepared as gems in greater quantities than was previously economically feasible.

Diamonds prepared as gemstones are sold on diamond exchanges called bourses. There are 28 registered diamond bourses in the world.

Diamonds can be sold already set in jewelry, or sold unset "loose". Mined rough diamonds are converted into gems through a multi-step process called "cutting".

Diamonds are extremely hard, but also brittle and can be split up by a single blow. Therefore, diamond cutting is traditionally considered as a delicate procedure requiring skills, scientific knowledge, tools and experience.

Its final goal is to produce a faceted jewel where the specific angles between the facets would optimize the diamond luster, that is dispersion of white light, whereas the number and area of facets would determine the weight of the final product.

For example, the diamond might be intended for display or for wear, in a ring or a necklace, singled or surrounded by other gems of certain color and shape.

Some of them are special, produced by certain companies, for example, Phoenix , Cushion , Sole Mio diamonds, etc. The most time-consuming part of the cutting is the preliminary analysis of the rough stone.

It needs to address a large number of issues, bears much responsibility, and therefore can last years in case of unique diamonds.

The following issues are considered:. After initial cutting, the diamond is shaped in numerous stages of polishing. Unlike cutting, which is a responsible but quick operation, polishing removes material by gradual erosion and is extremely time consuming.

The associated technique is well developed; it is considered as a routine and can be performed by technicians.

Those flaws are concealed through various diamond enhancement techniques, such as repolishing, crack filling, or clever arrangement of the stone in the jewelry.

Remaining non-diamond inclusions are removed through laser drilling and filling of the voids produced. And the firm created new markets in countries where no diamond tradition had existed before.

Ayer's marketing included product placement , advertising focused on the diamond product itself rather than the De Beers brand, and associations with celebrities and royalty.

Without advertising the De Beers brand, De Beers was advertising its competitors' diamond products as well, [] but this was not a concern as De Beers dominated the diamond market throughout the 20th century.

De Beers still advertises diamonds, but the advertising now mostly promotes its own brands, or licensed product lines, rather than completely "generic" diamond products.

Brown-colored diamonds constituted a significant part of the diamond production, and were predominantly used for industrial purposes. They were seen as worthless for jewelry not even being assessed on the diamond color scale.

After the development of Argyle diamond mine in Australia in , and marketing, brown diamonds have become acceptable gems.

Industrial diamonds are valued mostly for their hardness and thermal conductivity, making many of the gemological characteristics of diamonds, such as the 4 Cs , irrelevant for most applications.

The boundary between gem-quality diamonds and industrial diamonds is poorly defined and partly depends on market conditions for example, if demand for polished diamonds is high, some lower-grade stones will be polished into low-quality or small gemstones rather than being sold for industrial use.

Within the category of industrial diamonds, there is a sub-category comprising the lowest-quality, mostly opaque stones, which are known as bort.

Industrial use of diamonds has historically been associated with their hardness, which makes diamond the ideal material for cutting and grinding tools.

As the hardest known naturally occurring material, diamond can be used to polish, cut, or wear away any material, including other diamonds.

Common industrial applications of this property include diamond-tipped drill bits and saws, and the use of diamond powder as an abrasive. Less expensive industrial-grade diamonds, known as bort, with more flaws and poorer color than gems, are used for such purposes.

Specialized applications include use in laboratories as containment for high-pressure experiments see diamond anvil cell , high-performance bearings , and limited use in specialized windows.

The high thermal conductivity of diamond makes it suitable as a heat sink for integrated circuits in electronics. The mining and distribution of natural diamonds are subjects of frequent controversy such as concerns over the sale of blood diamonds or conflict diamonds by African paramilitary groups.

Only a very small fraction of the diamond ore consists of actual diamonds. The ore is crushed, during which care is required not to destroy larger diamonds, and then sorted by density.

Today, diamonds are located in the diamond-rich density fraction with the help of X-ray fluorescence , after which the final sorting steps are done by hand.

Before the use of X-rays became commonplace, [96] the separation was done with grease belts; diamonds have a stronger tendency to stick to grease than the other minerals in the ore.

Historically, diamonds were found only in alluvial deposits in Guntur and Krishna district of the Krishna River delta in Southern India.

Diamond extraction from primary deposits kimberlites and lamproites started in the s after the discovery of the Diamond Fields in South Africa.

Most of these mines are located in Canada, Zimbabwe, Angola, and one in Russia. In the U. The Crater of Diamonds State Park in Arkansas is open to the public, and is the only mine in the world where members of the public can dig for diamonds.

In some of the more politically unstable central African and west African countries, revolutionary groups have taken control of diamond mines , using proceeds from diamond sales to finance their operations.

Diamonds sold through this process are known as conflict diamonds or blood diamonds. In response to public concerns that their diamond purchases were contributing to war and human rights abuses in central and western Africa, the United Nations , the diamond industry and diamond-trading nations introduced the Kimberley Process in This is done by requiring diamond-producing countries to provide proof that the money they make from selling the diamonds is not used to fund criminal or revolutionary activities.

Although the Kimberley Process has been moderately successful in limiting the number of conflict diamonds entering the market, some still find their way in.

This is a stringent tracking system of diamonds and helps protect the "conflict free" label of Canadian diamonds. Synthetic diamonds are diamonds manufactured in a laboratory, as opposed to diamonds mined from the Earth.

The gemological and industrial uses of diamond have created a large demand for rough stones. This demand has been satisfied in large part by synthetic diamonds, which have been manufactured by various processes for more than half a century.

However, in recent years it has become possible to produce gem-quality synthetic diamonds of significant size. The majority of commercially available synthetic diamonds are yellow and are produced by so-called high-pressure high-temperature HPHT processes.

Other colors may also be reproduced such as blue, green or pink, which are a result of the addition of boron or from irradiation after synthesis.

Another popular method of growing synthetic diamond is chemical vapor deposition CVD. The growth occurs under low pressure below atmospheric pressure.

It involves feeding a mixture of gases typically 1 to 99 methane to hydrogen into a chamber and splitting them to chemically active radicals in a plasma ignited by microwaves , hot filament , arc discharge , welding torch or laser.

A diamond simulant is a non-diamond material that is used to simulate the appearance of a diamond, and may be referred to as diamante.

Cubic zirconia is the most common. The gemstone moissanite silicon carbide can be treated as a diamond simulant, though more costly to produce than cubic zirconia.

Both are produced synthetically. Diamond enhancements are specific treatments performed on natural or synthetic diamonds usually those already cut and polished into a gem , which are designed to better the gemological characteristics of the stone in one or more ways.

These include laser drilling to remove inclusions, application of sealants to fill cracks, treatments to improve a white diamond's color grade, and treatments to give fancy color to a white diamond.

Coatings are increasingly used to give a diamond simulant such as cubic zirconia a more "diamond-like" appearance.

One such substance is diamond-like carbon —an amorphous carbonaceous material that has some physical properties similar to those of the diamond.

Advertising suggests that such a coating would transfer some of these diamond-like properties to the coated stone, hence enhancing the diamond simulant.

Techniques such as Raman spectroscopy should easily identify such a treatment. Early diamond identification tests included a scratch test relying on the superior hardness of diamond.

This test is destructive, as a diamond can scratch another diamond, and is rarely used nowadays.

Instead, diamond identification relies on its superior thermal conductivity. Electronic thermal probes are widely used in the gemological centers to separate diamonds from their imitations.

These probes consist of a pair of battery-powered thermistors mounted in a fine copper tip. One thermistor functions as a heating device while the other measures the temperature of the copper tip: if the stone being tested is a diamond, it will conduct the tip's thermal energy rapidly enough to produce a measurable temperature drop.

This test takes about two to three seconds. Whereas the thermal probe can separate diamonds from most of their simulants, distinguishing between various types of diamond, for example synthetic or natural, irradiated or non-irradiated, etc.

Those techniques are also used for some diamonds simulants, such as silicon carbide, which pass the thermal conductivity test. Optical techniques can distinguish between natural diamonds and synthetic diamonds.

They can also identify the vast majority of treated natural diamonds. Laboratories use techniques such as spectroscopy, microscopy and luminescence under shortwave ultraviolet light to determine a diamond's origin.

Several methods for identifying synthetic diamonds can be performed, depending on the method of production and the color of the diamond.

CVD diamonds can usually be identified by an orange fluorescence. Screening devices based on diamond type detection can be used to make a distinction between diamonds that are certainly natural and diamonds that are potentially synthetic.

Those potentially synthetic diamonds require more investigation in a specialized lab. Occasionally, large thefts of diamonds take place.

The gang broke through a perimeter fence and raided the cargo hold of a Swiss-bound plane. The gang have since been arrested and large amounts of cash and diamonds recovered.

The identification of stolen diamonds presents a set of difficult problems. Rough diamonds will have a distinctive shape depending on whether their source is a mine or from an alluvial environment such as a beach or river—alluvial diamonds have smoother surfaces than those that have been mined.

Determining the provenance of cut and polished stones is much more complex. The Kimberley Process was developed to monitor the trade in rough diamonds and prevent their being used to fund violence.

Before exporting, rough diamonds are certificated by the government of the country of origin. Some countries, such as Venezuela, are not party to the agreement.

The Kimberley Process does not apply to local sales of rough diamonds within a country. Diamonds may be etched by laser with marks invisible to the naked eye.

Lazare Kaplan , a US-based company, developed this method. However, whatever is marked on a diamond can readily be removed.

Diamonds have been treasured as gemstones since their use as religious icons in ancient India. Their usage in engraving tools also dates to early human history.

In , the French scientist Antoine Lavoisier used a lens to concentrate the rays of the sun on a diamond in an atmosphere of oxygen , and showed that the only product of the combustion was carbon dioxide , proving that diamond is composed of carbon.

From Wikipedia, the free encyclopedia. This article is about the mineral. For the gemstone, see Diamond gemstone. Allotrope of carbon often used as a gemstone and an abrasive.

The slightly misshapen octahedral shape of this rough diamond crystal in matrix is typical of the mineral. Its lustrous faces also indicate that this crystal is from a primary deposit.

Main article: Material properties of diamond. See also: Crystallographic defects in diamond. Main article: Diamond color. Main article: Extraterrestrial diamonds.

A round brilliant cut diamond set in a ring. Main article: Diamond gemstone. Main articles: Diamond cutting and Diamond cut. See also: List of diamond mines and Exploration diamond drilling.

Play media. Main articles: Kimberley Process , Blood diamond , and Child labour in the diamond industry. Main article: Synthetic diamond.

Main article: Diamond simulant. Main article: Diamond enhancement. Minerals portal. Retrieved July 7, In Delhaes, Pierre ed. Graphite and precursors.

Noyes Publications. In Paoletti, A. The physics of diamond. IOS Press. Chemical Thermodynamics. University Science Books. Popular Science. Retrieved October 31, In Yang, Guowei ed.

Pan Stanford Pub. Physical Review Letters. Bibcode : PhRvL.. January 23, Proceedings of the National Academy of Sciences.

Bibcode : PNAS.. Materials science. Tata McGraw-Hill Pub. David Solid state physics. Holt, Rinehart and Winston. In Radovic, Ljubisa R.

Chemistry and physics of carbon. Marcel Dekker. Gems: Their sources, descriptions and identification 5th ed. Great Britain: Butterworth-Heinemann.

May 30, Annual Review of Earth and Planetary Sciences. Diamond and Related Materials. Bibcode : DRM Astrophysical Journal. Bibcode : ApJ National Science Foundation.

January 8, Retrieved October 28, Properties, Growth and Applications of Diamond. Institution of Engineering and Technology.

Innovative superhard materials and sustainable coatings for advanced manufacturing. Handbook of ceramic grinding and polishing.

William Andrew. The nature of diamonds. Cambridge University Press. October 3, Applied Physics Letters. Nature Communications. Bibcode : NatCo Physics World.

November 2, Retrieved November 1, April 20,

Diamond Symbol Video

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Diamond Symbol - Inhaltsverzeichnis

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Diamond Symbol - Diamond Symbol

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Lazare Kaplan , a US-based company, developed this method. However, whatever is marked on a diamond can readily be removed.

Diamonds have been treasured as gemstones since their use as religious icons in ancient India. Their usage in engraving tools also dates to early human history.

In , the French scientist Antoine Lavoisier used a lens to concentrate the rays of the sun on a diamond in an atmosphere of oxygen , and showed that the only product of the combustion was carbon dioxide , proving that diamond is composed of carbon.

From Wikipedia, the free encyclopedia. This article is about the mineral. For the gemstone, see Diamond gemstone. Allotrope of carbon often used as a gemstone and an abrasive.

The slightly misshapen octahedral shape of this rough diamond crystal in matrix is typical of the mineral.

Its lustrous faces also indicate that this crystal is from a primary deposit. Main article: Material properties of diamond. See also: Crystallographic defects in diamond.

Main article: Diamond color. Main article: Extraterrestrial diamonds. A round brilliant cut diamond set in a ring.

Main article: Diamond gemstone. Main articles: Diamond cutting and Diamond cut. See also: List of diamond mines and Exploration diamond drilling.

Play media. Main articles: Kimberley Process , Blood diamond , and Child labour in the diamond industry. Main article: Synthetic diamond.

Main article: Diamond simulant. Main article: Diamond enhancement. Minerals portal. Retrieved July 7, In Delhaes, Pierre ed. Graphite and precursors.

Noyes Publications. In Paoletti, A. The physics of diamond. IOS Press. Chemical Thermodynamics. University Science Books.

Popular Science. Retrieved October 31, In Yang, Guowei ed. Pan Stanford Pub. Physical Review Letters. Bibcode : PhRvL..

January 23, Proceedings of the National Academy of Sciences. Bibcode : PNAS.. Materials science. Tata McGraw-Hill Pub. David Solid state physics.

Holt, Rinehart and Winston. In Radovic, Ljubisa R. Chemistry and physics of carbon. Marcel Dekker. Gems: Their sources, descriptions and identification 5th ed.

Great Britain: Butterworth-Heinemann. May 30, Annual Review of Earth and Planetary Sciences. Diamond and Related Materials. Bibcode : DRM Astrophysical Journal.

Bibcode : ApJ National Science Foundation. January 8, Retrieved October 28, Properties, Growth and Applications of Diamond.

Institution of Engineering and Technology. Innovative superhard materials and sustainable coatings for advanced manufacturing. Handbook of ceramic grinding and polishing.

William Andrew. The nature of diamonds. Cambridge University Press. October 3, Applied Physics Letters. Nature Communications. Bibcode : NatCo Physics World.

November 2, Retrieved November 1, April 20, Philosophical Transactions of the Royal Society A. Bibcode : ApPhL.. Redox activity". Physical Review E.

Bibcode : PhRvE.. Analytical Chemistry. Precious Stones, Volume 1. Dover Publications. Gemological Institute of America.

Retrieved August 1, How to Safeguard Your Jewelry". Science Questions with Surprising Answers. February 21, European Journal of Inorganic Chemistry.

Physical Review B. Bibcode : PhRvB.. Reports on Progress in Physics. Bibcode : RPPh Brunswick House Press. The Daily Telegraph. Retrieved March 31, May 12, Retrieved May 13, The diamond makers.

Synthetic, Imitation and Treated Gemstones. Gulf Professional Publishing. Dan December 1, The Mantle and Core.

Archived from the original PDF on October 21, Retrieved June 16, They don't form from coal! Geology and Earth Science News and Information.

Archived from the original on October 30, Retrieved June 29, The Christian Science Monitor. Retrieved August 30, Economic Geology: Principles and Practice.

A dictionary of geology and earth sciences 4th ed. Oxford: Oxford University Press. In Milkereit, B. Decennial Mineral Exploration Conferences , Retrieved March 1, Washington, DC.

Retrieved December 13, In Orcutt, Beth N. July 12, Reviews of Modern Physics. Bibcode : RvMP October 1, American Scientist.

Bibcode : AmSci.. Washington Post. Retrieved October 16, Astronomy magazine. Retrieved September 25, April Diamond-like glass".

Retrieved September 26, Jewelrymaking through history. Greenwood Publishing Group. April 12, Retrieved November 3, Archived from the original on March 17, Retrieved March 9, Spiegel Online.

May 15, Antwerp World Diamond Center. August 16, The Economist. Retrieved September 24, Archived from the original on June 16, Retrieved April 26, November 6, DIB online.

Archived from the original on May 12, November 3, National Jeweler. Archived from the original on July 5, The De Beers Group.

Archived from the original on June 13, Retrieved January 4, RIA Novosti. May 6, Retrieved May 25, December 22, Archived from the original on August 20, ABC News.

August 22, Retrieved August 23, Rio Tinto web site. Rio Tinto. Archived from the original on May 11, Retrieved March 5, Africa's silk road. World Bank Publications.

World Federation of Diamond Bourses. Retrieved February 12, Archived from the original on January 6, Retrieved May 5, Handbook of carbon, graphite, diamond, and fullerenes: properties, processing, and applications.

Antique jewellery: its manufacture, materials and design. Osprey Publishing. Retrieved July 14, Handbook of industrial diamonds and diamond films.

CRC Press. Popular Mechanics. While the rarity, beauty and high value of diamonds account for their positive symbolic meaning, these same factors have often spawned violence and bloodshed over control of lucrative diamond sources.

Such diamonds can therefore been seen as symbols of cruelty and crime. The fact that trails of tragedies have supposedly followed in the wake of many famous diamonds as they passed from one owner to another- the Hope Diamond being an example- lends credence to such symbolism.

In terms of specific cultural examples, diamonds tend to showcase more of their positive symbolism rather than any questionable methods of acquisition.

In the Old Testament, a diamond is one of twelve stones set into the breastplate of the Jewish High Priest.

While these stones are commonly interpreted as representing the Twelve Tribes of Israel, they are also a possible originator of the modern concept of birthstones one for each month of the year.

In India, the diamond is one of the navaratnas, a series of nine specific gems that were used to represent the heavenly bodies as part of an ancient astrological system.

In this case the diamond symbolizes the planet Venus. In Ancient Greece and during the European Middle Ages, diamonds, like other gemstones, were believed to possess protective qualities.

They were used as a defense against poison, plague and even set into sword hilts to protect knights in battle. Diamonds are also the traditional birthstone for the month of April.

Not of the ordinary sort of wisdom though. I speak of a clarity and wisdom that transcends the banalities of our everyday realm. I begin this essay with some diamond symbol meanings that are foundational in various cultures and can be easily translated into a concept of your choosing.

I believe the underlying foundation of these diamond symbol meanings to be profound in our quest to pierce the fog that sometimes surrounds these common symbolic motifs in time and culture.

Furthermore, it is in this spirit of metaphor , analogy, and symbolism that I would like our attentions to turn. More than the literal translation of the symbol, it is the vibrational tone , or the higher energetic wisdom with which the symbol meaning resonates that I wish to convey.

After contemplating these various concepts, a larger story will begin to unveil itself to your understanding, which will offer clarity unique to your needs.

It must be polished within, or the luster of the soul will never appear. This symbol shown is a common motif among Native peoples indigenous to North America, Canada, and Mexico.

It signifies the butterfly. This homecoming was seen as intensely powerful to Native thought. To explain, the Native American symbolic mode of thought moves on a multitude of levels.

This encapsulates the divine journey in which man is born, moves through his world ever-gleaning more insight into his true identity and finally, ideally returns to the site of his first breath to realize he is immortal in his existence because of the path he chooses.

In other words, man leaves a legacy , which is his key to immortality. Furthermore, the diamond butterfly motif conveys the element of rebirth, revitalization, and metamorphosis.

Just as the migratory journey is analogous of the spiritual path of reuniting with the Divine self — so too is the biological journey of the butterfly symbolic of the same said spiritual path.

From egg, larva, pupa, to butterfly each stage holds merit and each step is taken to the advancement of an enlightened, immortal conclusion which, to the Native, would not be a conclusion at all, but leading to a gateway of eternal expression through the Mother upon the completion of metamorphosis.

The earth has long been worshipped by ancient mystics. It is a representation of harmony , stability, and oneness with all things — a communal arena in which the core center point of the 4 diamond cross represents a foundational energy of unity and well-being.

Indeed, earth magic is rooted in the ideology that all things of the earth are born from her, and therefore vibrate with earth energy.

Early mystics and alchemists believed this earth energy could be drawn from all things, and ultimately used for further clarification.

This clarification came in the form of manipulation of vibrations earth energy waves , drawing elements into an experience, interpreting patterns within the vibrations seeking answers — to name a few uses for these practices.

This symbol would be used in ritual for such clarifications. This rune is called the Dagaz and is the Symbol of the Dawn.

Further, the Dagaz embodies the concepts of: Awakening, insight, clarification, awareness, epiphany , new beginnings, and connections to the mystical in all things.

It is also emblematic of time and space as complimentary elements. This rune speaks of the partnership between night and day with the center-point represented as the dawn.

Metaphorically, the dawn marks an awakening to all new understandings. This diamond motif is seen throughout the ages and cultures.

For our purposes, we look again to the Futhark for symbolic insight where this is known as the Ingwuz rune and is the foundational geometric symbol of creation.

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