Tuesday, December 25, 2012

How is diamond formed?

                                                 How is diamond formed?

In mineralogy , diamond is an allotrope of carbon. , where the carbon atoms are arranged in a variation of face centered cubic crystal . Diamond has the highest hardness and high thermal conductivity. It can be contaminated by very few impurities.
Diamonds are formed at high temperature and pressure in the earth's mantle. Diamonds are brought close to the Earth's surface through volcanic eruptions by a magma which cools into igneous rocks. The formation of diamond requires very specific conditions -------- exposure of carbon bearing materials to high pressures . Diamond is the hardest known natural material on earth.

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