Minerals
Rocks
Mining Methods
Processing Metals
Miscellaneous
100
Name one criteria for calling something a mineral.
Occurs in nature, chemically inorganic, orderly crystal structure, definite chemical composition, solid
100
Which type of rock forms when rock is exposed to great heat AND pressure?
Metamorphic
100
Mining by digging vertical shafts down into the ground and then digging horizontal tunnels.
Subsurface
100
A mixture of the desired materials to be mined and the rocky material that has no value is called
Ore
100
Which type of rock is formed when layers of sediment build up over time?
Sedimentary
200
How light reflects from a mineral's surface.
Luster
200
Which type of igneous rock forms when magma cools slowly well below Earth's surface?
Intrusive igneous
200
Which type of mining produces the most erosion?
Strip or mountaintop removal
200
Heating ore beyond its melting point and combining it with other metals and chemicals is called
Smelting
200
The color of a mineral's powder is called its
Streak
300
A mineral that breaks apart irregularly rather than leaving a flat surface is showing
Fracture
300
What type of sedimentary rock forms when layers of sediment build up over time and the sediment particles bind together?
Clastic sedimentary
300
Pumping a chemical solution into the mine to leach out the resource is called
Solution mining
300
What is the leftover waste from processing metals called?
Tailings
300
What did the General Mining Law of 1872 did for the mining industry?
Said that people could mine on any land that wasn't specifically set aside for something else.
400
Minerals that consist of the same substances but were formed under different conditions are called
Polymorphs
400
What condition(s) do igneous rocks form under?
High heat
400
Which type of mining method was used in California during the Gold Rush?
Placer
400
What is an alloy?
A metal that has been fused with other metals or substances.
400
Which metal is mined to be used in cell phones and what is the controversy that surrounds it?
Coltan, there is a war in the Congo, they strip land that is habitat, killing gorillas, etc.
500
When minerals form when a liquid in a solution evaporates and leaves remaining solids that crystallize this is called
Precipitation
500
What type of rock is granite?
Igneous
500
What are two drawbacks of undersea mining?
Expensive, can destroy habitats, pollution
500
Acid drainage is the presence of what in streams and rivers as a result of mining?
Sulfuric acid
500
What did the Surface Mining Control and Reclamation Act of 1977 do?
Required companies to put the land back the way it was after mining.
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