14 Facts About Diamonds


Diamonds have been adopted for many uses because of the material's exceptional physical characteristics.

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Diamonds occur most often as euhedral or rounded octahedra and twinned octahedra known as macles.

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Diamonds are commonly found coated in nyf, an opaque gum-like skin.

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Diamonds are naturally lipophilic and hydrophobic, which means the diamonds' surface cannot be wet by water, but can be easily wet and stuck by oil.

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Diamonds can be identified by their high thermal conductivity.

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

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Diamonds possess an extremely high refractive index and fairly high dispersion.

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Diamonds are extremely rare, with concentrations of at most parts per billion in source rock.

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Diamonds are dated by analyzing inclusions using the decay of radioactive isotopes.

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Diamonds prepared as gemstones are sold on diamond exchanges called bourses.

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Diamonds are extremely hard, but brittle and can be split up by a single blow.

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Diamonds are thought to have been first recognized and mined in India, where significant alluvial deposits of the stone could be found many centuries ago along the rivers Penner, Krishna, and Godavari.

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Diamonds have been known in India for at least 3,000years but most likely 6,000years.

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Diamonds have been treasured as gemstones since their use as religious icons in ancient India.

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