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15 Cards in this Set

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  • Back
Ductile
ability to pull into wire
Sianide
bad poison for gold ore leeching
Dredging
scrapings or vaccuums of desirable minerals friom ocean floors, lake bottoms, or stream beds.
Smelting
the proccess of removing the desirable metals from the ore. Causes lots of pullution. 8% of world's sulfur dioxide. emits arsenic and lead.
Tailings
discarded left behind materials, put in piles called spoil piles.
mining
digging for ore
Gypsum
Conrete wallboard
Quartz
Glass, microproccessors, makes silicon.
streak
color of powder from scratch
luster
the shine
cleavage
it can peel / break easily.
talc & diamond
softest & hardest
minieral
inorganic, natural occuring solid material.
ore
rock containing valuable materials.
3 most common rock forming minerals
quartz, feldspar, mica