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Minerals
Will Sharps
25
Science
7th Grade
01/08/2014

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Cards

Term
What is a mineral?
Definition
mAKES UP ROCKS
Term
How many elements occur naturally in the Earth's crust?
Definition
90
Term
What is the most common mineral?
Definition
Silicates
Term
What elements do silicates contain?
Definition
Silicon and oxygen
Term
Hardness
Definition
How tough a mineral is
Term
Moh's Scale
Definition
Scale of hardness
Term
Toughest mineral
Definition
Diamond
Term
Weakest mineral
Definition
Talc
Term
Luster
Definition
the way a mineral reflects light
Term
Speficic gravity
Definition
Density
Term
Streak
Definition
color of mineral n powdered form
Term
Cleavage
Definition
If a mineral breaks even
Term
Fracture
Definition
if a mineral breaks uneven
Term
Gem Chararteristics
Definition
Beautiful

Rare
Term
Ore
Definition
Rock that contains minerals that can be mined for a profit
Term
Three examples of ore
Definition
hematite- iron
magenete- iron
Bauxite- aluminum
Term
Smelting
Definition
Melting minerals and rocks
Term
What is a blood diamond
Definition
Illegal diamonds that originate from areas controlled by warlords and are used to support violence
Term
In what form are they sold
Definition
Rough
Term
What percent of the world's diamonds were blood diamonds
Definition
4%
Term
Why are these diamonds bad
Definition
Because the warlords use citezens as slaves to mine them
Term
What is the purpose of the kimberley process
Definition
Stop blood diamonds purcheses
Term
What is the requirment of the Kimberley process
Definition
Produced legally
Term
Why does it not work
Definition
Lack of political power
Term
Zimbabwe problem
Definition
Military owned diamond feilds
Force natives to work
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