Where are Diamonds Found?

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Diamonds are crystals and are the hardest naturally occurring substance in the world. They are formed by intense heat and pressure, deep beneath the surface of the Earth. They are made up of pure carbon and are usually colourless. Diamonds have to be cut in a special way to catch the light and sparkle. Diamonds have been formed millions of years ago from carbon which was caught up in molten rock deep in the Earth's crust. South Africa, Tanzania and Siberia have been mined for diamonds. Diamonds also come from the gravels of rivers in some areas in Africa, India, Indonesia, Brazil, Australia and Russia. 

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