minerals Flashcards
1
Q
What are minerals
A
Natural compounds composed of 1 or more elements
2
Q
Mineral characteristics
A
Naturally occurring
- inorganic
- specific chemical composition-crystalline structure
3
Q
What is ore
A
When mineral resources become concentrated (enriched) to become economical
4
Q
List the 8 elements
A
Oxygen Sillicon Alluminum Iron Calcium Sodium Potassium magnesiym
5
Q
What are the four mineral resources
A
Hydrothermal
Igneous origin
Metamorphic origin
Sedimentary origin
6
Q
Define hydrothermal
A
Hot fluids moving through rock
7
Q
What is Metamorphic origin
A
Rocks that physically & mentally change in response to pressure & temp change
8
Q
What is igneous origin
A
Crystals settling out of a cooling magma body
9
Q
What is sedimentary origin
A
Ex:
Place deposits (gold, silver)
*evaporator deposits (halite, gypsum)
10
Q
What are tailings
A
Materials left over after separating the valuable part of an ore from the uneconomic portion
