Mineral Resources

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What is a NATURAL RESOURCE?
Naturally occurring material that is economically recoverable, useful and therefore has value.
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What are MINERAL RESERVES?
The amount of minerals that remain in the ground that can be recovered at present levels of technology.
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What is an ORE?
It is a rock that contains an accumulation of metal that is economic to mine.
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What is an ORE MINERAL?
It is a mineral that is exploited for it's metal content.
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What is a GANGUE MINERAL?
A mineral which has no commercial value.
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The percentage metal content of an ore body is known as?
It's GRADE.
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What is the CUT OFF GRADE?
It is the minimum grade which is worth exploiting commercially.
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What is the cut off grade of aluminium and gold?
Aluminium = 35%. Gold = 0.001%.
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Determining a metals value depends on what?
Demand, abundance, size of the deposit and the cost of mining and exploitation.
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What is the MINIMUM CONCENTRATION FACTOR?
This is how much the metal has to be concentrated in the ore body, compared to it's average concentration in the crust, in order to reach the cut off grade.
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Name 6 ways in which ore minerals can be concentrated in the ore body.
Hydrothermal veins, gravity settling in igneous intrusions, weathering residues, placer deposits, secondary enrichment and uranium ore deposits in sandstone.
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What metal is extracted from the ore mineral BAUXITE?
Aluminium
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What ore mineral is COPPER extracted from?
Chalcopyrite
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ZINC is extracted from which ore mineral?
SPHALERITE
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HAEMATITE is mined to extract which metal?
IRON
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The metal LEAD can be extracted from?
GALENA
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TIN can be extracted from which ore mineral?
CASSITERITE
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Which metal can be extracted from the ore mineral URANINITE?
URANIUM
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The metal GOLD comes from which ore mineral?
GOLD
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Other cards in this set

Card 2

Front

What are MINERAL RESERVES?

Back

The amount of minerals that remain in the ground that can be recovered at present levels of technology.

Card 3

Front

What is an ORE?

Back

Preview of the front of card 3

Card 4

Front

What is an ORE MINERAL?

Back

Preview of the front of card 4

Card 5

Front

What is a GANGUE MINERAL?

Back

Preview of the front of card 5
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