What are the diamonds?
Have you ever wondered about diamonds? Where diamonds come from? What makes a diamond so special? Or how diamonds are formed?
Diamonds are a mineral, a natural crystalline substance, the transparent form of pure carbon or nearly pure carbon. Diamonds have extraordinary qualities. Diamonds have a broad color range, high refraction, dispersion of fire, very low reactivity to chemicals, rarity, and of course, extreme hardness and durability. The diamonds are known as the "king of gems" they glitter, glow, and symbolize purity and strength.
A diamond is the oldest thing you will ever own, probably 3 billion years old, two-thirds of the full age of the Earth. A diamond is a strategic and high-tech supermaterial our technological society. Diamond is the birthstone for April.
A diamond is composed of the element individual carbon and is the arrangement of atoms of C in the network to give a diamond its amazing properties. Both diamond and graphite are carbon compounds only. However, a diamond is the hardest known material and graphite is one of the softest, this was caused by a rearrangement of the manner in which the atoms are joined together. diamond carbon atoms are linked in a regular three-dimensional network with a repeating or crystalline pattern.
Diamond belongs than cubic, or "isometric" crystal system. The most commonly seen in glass or of a system are:
• Octahedron (8 sides)
• cube (6 faces)
• dodecahedron (12 sides)
A diamond is the ultimate gemstone, with few weaknesses and many points strong. It is well known that diamonds are the hardest substance found in nature, but few people realize that diamonds are four times harder than Previous hardest natural mineral, corundum – sapphires and rubies.
Natural Diamonds form deep in the mantle layer of the Earth from the element carbon, about 180 km below the surface, where high temperatures and pressures exist. Some diamonds form at depths of 300-400 km or even deeper, but these diamonds are particularly rare.
The shelf lands consists of molten rock, metals and other materials. The temperature is very high at this depth – between 1100 degC and 1400 degC. The high pressures needed to form diamonds are produced by the weight of 180 km of rocks pressing down. Besides carbon, there are very small amounts of other substances, such as nitrogen and sulfur that can become trapped in the glass when formed in the mantel. These impurities can give color to diamonds. One of the rarest pink diamonds.
Natural diamonds are classified by the type and level of impurities found within them.
• Type of diamond Ia – Most natural diamonds are of this type, containing up to 0.3% nitrogen.
• Type Ib diamond – Very rare (~ 0.1%) in the nature, but almost all synthetic (industrial) diamonds are of this type. They contain nitrogen at concentrations of 500 ppm.
• Type of diamond IIa – Very rare in nature, these diamonds contain so little nitrogen that can not be easily detected by the usual IR or UV absorption measurements.
• Type IIb diamond – Extremely rare in nature. They have a low concentration of nitrogen (even lower than type IIa) which is a semiconductor crystal P-type (due to uncompensated B acceptor impurities).
Due to its unique internal structure and powers of reflection of light, cut in right proportions, the diamonds gather light within itself and sends it back into a rain of fire and brilliance. The life of a polished diamond is regarded as the amount of light that is reflected back the viewer. The term life is also known as brightness. If the diamond is cut with good proportions then the brightness will increase. Lustre refers to the surface brightness of a polished diamond. Fire the play of colors that can be seen from the crown of a polished diamond. When light enters the diamond it is refracted and divided among the colors of the spectrum and reflects back. Flashes of rainbow colors as a result of fire are called.
The hardness of diamond is an important property. As an industrial tool that has many uses and modern industry is highly dependent on it. As a gemstone, it is resistant to scratches and abrasion, which ensures that a finished gem will keep shine and polish. Because of its hardness and the particular way in which it is manufactured, a polished diamond very slowly. It forms an unusually flat, finely polished enamel surface, with very sharp, straight edges between facets. No other gemstone can quite match this level of polish.
The diamond has the highest coefficient of conductivity heat of a substance known by the closely compact crystal structure conducts heat very quickly. The thermal conductivity of diamond is five times greater than copper. This explains why a diamond feels cold to the touch when first picked up, but quickly warmed by the heat of your fingers.
Only about one-fifth of all diamonds mined could be considered gem quality. 40 to 250 tons of gravel and sand will be treated today to retrieve a diamond in the rough from the diamond fields of slimming world. Experts estimate that all known supplies of diamonds will be depleted within 30-40 years. 75-80% of all diamonds mined are used for industrial applications such as drilling, grinding, or sawing. The rest are used for jewelry and investment. Less than 2% of diamonds mined are of such high quality that can be considered as investments.
On average, 250 tons of ore must be mined and processed to produce a diamond of one carat gem quality. When the mining operation is completed, sorters look at rough diamonds, separating them into small piles by shape, size and quality, a long and laborious process.
The earliest examples of diamonds in human hands were found 3,000 years ago in India. There, diamonds were used primarily as talismans to ward off evil and protect the wearer in battle. Diamonds were also used by the ancient Chinese, Greeks and Romans as an engraving tool. Although there was some mystique surrounding diamonds because they were so rare and difficult to obtain the first cultures, many believed I had magical properties
The diamond comes from the Greek word "Adamas" meaning unconquerable, in reference to the eternity of love. In 1477, Archduke Maximilian of Austria gave a diamond ring to Mary of Burgundy, thus beginning the tradition of diamonds engagement rings. The reason a woman wears an engagement ring on her ring finger of her left hand dates back to the Egyptian belief that the vena amoris (vein of love) ran directly from the heart of the top of that finger.
Many of the rarest diamonds occur by rare accidents of nature in shades of pink, amber, blue, green, or red. These diamonds are known as Fancy diamonds are evaluated on a different set of color standards. Fancy diamonds are the most expensive due to extreme rarity.
By the mid 20th century, De Beers began using its slogan "A diamond is forever" in their advertising. His campaign was so successful that today These days, diamonds are strongly associated with engagement rings and eternal love.
It is the only gem mineral composed of a single element is so purest of gems. Therefore, it is desirable that the purest and most brilliant of precious stones from around the world that the diamond engagement ring the symbol ideal of eternal love.
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About the Author
Diamond Imports is one of Australia’s largest importers of loose diamonds specialising in excellent and ideal cut diamonds, certified diamonds, wholesale diamonds and diamond engagement rings.
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