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Tag Archives: Rio Tinto

Mining Methods: Block Caving

What is Block Caving? Block (gravity) caving is a bulk underground mining method, which allows large low-grade deposits to be mined underground. This method involves undermining the orebody to make ...

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Diamonds – Where They Are Found and Why

Cullian (Premier) Mine - South Africa Image CC

Like gold, diamonds were originally recovered from alluvial deposits. However, unlike gold, the actual mining of diamonds from source deposits didn’t start until the late 19th century in the Kimberley ...

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Porphyry Copper Deposits

Bougainville Copper Ltd, Papua New Guinea looking across the pit - 1986

Most of the world’s copper is extracted from a type of mineral deposit called a “porphyry copper”. If you’ve seen a picture of a great big open-pit mining operation odds are ...

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