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Coleman
Minerals
28
Science
7th Grade
01/08/2014

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Cards

Term
mineral
Definition
inorganic solids that make 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 are silicates made of?
Definition
Silicon and oxygen
Term
apperance
Definition
what a mineral looks like(color)
Term
hardness
Definition
how hard a mineral is
Term
Moh's scale
Definition
scale used to measure the hardness of minerals
Term
Diamond
Definition
hardest material on the Moh's scale
Term
Talc
Definition
softest material on the Moh's scale
Term
Luster
Definition
way a mineral reflects light
Term
specific gravity
Definition
ratio of weight of a mineral to the weight of an equal volume of water
Term
Streak
Definition
color of mineral in powder form
Term
Clevage
Definition
mineral that breaks along a plane
Term
Fracture
Definition
mineral that breaks unevenly
Term
What makes a mineral a gem?
Definition
Mineral is beautiful and rare
Term
What is an ore?
Definition
a rock that contains a useful substance that can be mined for profit
Term
bauxite ore
Definition
aluminum
Term
hematite ore
Definition
iron
Term
magnetite ore
Definition
iron
Term
What is smelting?
Definition
Melting a substance to separate it from unwanted materials
Term
conflict/"blood" diamond
Definition
illegally traded diamonds traded to fund conflict in war-torn areas
Term
In what form are conflict diamonds traded?
Definition
rough form
Term
At one time, what percent of the world's diamond production was represented by conflict diamonds?
Definition
4 percent
Term
Why are conflict diamonds bad?
Definition
Rebels and war-lords take civilians as slaves to mine the diamonds.
Term
What is the purpose of the Kimberley Process?
Definition
It is to make it harder to trade conflict diamonds.
Term
What is the requirement of the Kimberley Process Certification Scheme?
Definition
Diamonds traded must be mined legitimately.
Term
Why has the scheme not worked as well as they had hoped?
Definition
Country leaders aren't willing to enforce the Scheme.
Term
What is the problem in Zimbabwe?
Definition
Traders injury anyone who doesn't agree? help them.
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