The Importance Of Diamonds
Diamond is made up of carbon, which crystallised in the cubic system under high pressure and high temperature. Diamond may contain small traces of other substituted elements such as nitrogen (N) or boron (B) giving the diamond crystal to form in any color of the spectrum.
GOLCONDA Mine In India
India, and to a lesser extent Borneo, were the only source of diamonds until about 1730. In the 18th century, when the Indian diamond mines declined, new and important diamond deposits were found in the states of Mato Grosso, Minas Gerais, Roraima, and Bahia in Brazil.