Diamond were formed deep underground in conditions of intense heat and pressure.Artificial diamonds can be made n factories .Pure carbon is baked under gret pressure to over 1400C . NAtural diamonds were probably found under similar conditions.
Diamonds are mined in South Africa ,Tanzania ,Siberia,Africa ,India,Indonesia, Brazil,Australia and the former Soviet republics..Gold is found in mineral veins in rocks , or in gravels which have been washed away from areas where gold -bearing rocks have been reoded.Prospectors may pan the gravel in streams for grains of gold.Half of the world's gold is mined in South Africa.
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