Show:
FORMATION
TESTS
USES
PROBLEMS
MISCELLANEOUS
100
a natural material whose concentration of valuable minerals is high enough for the mineral to be mined
What is an ore?
100
two kinds of luster
What are metallic and nonmetallic?
100
kind of mining is done when minerals are located underground
What is subsurface?
100
rocks, containing metal sulfides, uncovered by mining pollute the water in a process called _____
What is acid mine drainage?
100
causes mosquitos to breed
What is land dredging?
200
forms when minerals are deposited in cracks in a rock
What are veins?
200
test done when a mineral is dragged across an unglazed tile
What is streak?
200
one of the first minerals to be used by people
What is gold?
200
coal is mined using this method which pollutes land and streams
What is mountaintop removal?
200
iron + ___ = steel
What is carbon?
300
can be drawn into a wire DAILY DOUBLE!!!!!!!!!!!!!!!!!!
What is ductile?
300
Moh's does what?
What is tells hardness ?
300
made of two metals which have been melted together
What is an alloy?
300
when mines are put back the way they were
What is reclamation?
300
can be made into a flat shape
What is malleable?
400
where several veins come together
What is a lode?
400
a mineral which can be scratched by a fingernail, and gives a black streak
What is graphite?
400
copper plus tin
What is bronze?
400
an animal hurt by mining due to habitat loss
What is the gorilla?
400
stainless steel is made from ____ + _____
What are iron and chromium?
500
deposit made when fragments of a mineral are eroded from a rock and end up in a streambed
What is a placer deposit?
500
kind of breakage which leaves minerals rough and jagged
What is fracture?
500
solder is made from ___ and ___
What is lead and tin?
500
one deleterious effect of river dredging
What is mercury poisoning OR cyanide poisoning OR river becomes dammed with gravel?
500
two effects of mining on land DAILY DOUBLE!!!!!!!!!!!!!!!!!!!!!
What are deforestation, loss of biodiversity, change of chemical composition of the land?