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15 Cards in this Set
- Front
- Back
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Russia’s significant diamond deposits are in
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Siberia |
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The largest percentage of world diamond production (by weight) is mined in
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Australia |
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Diamond’s attraction to grease is used in
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separating diamond from ore gravels. |
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Most diamonds from Australia are
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small and poor in quality.
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The shift in emphasis from alluvial to primary diamond mining was due to
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improved technology.
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The Argyle mine is famous for diamonds that are
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pink |
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Dense media separation is based on the fact that
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diamonds sink to the bottom of a mix of gravels.
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A horizontal tunnel drilled through a diamond pipe is called a
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drift |
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Removal of mineral-bearing ore from a surface excavation is called
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open-pit mining.
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Most modern diamond-mining operations are
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large in scale and extremely expensive.
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Dirt and clay are washed from diamond-bearing ore by
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scrubbers |
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Shortly before the discovery of the South African deposits, the world’s major diamond producer was
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Brazil |
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Chambering and block caving are methods used in
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mining diamond pipes.
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Russia’s diamond sources are almost all
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primary |
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African diamonds are recovered from
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pipe, alluvial, and marine deposits.
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