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Minerals
7B
39
Science
7th Grade
01/08/2014

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Term
mineral
Definition
natural occurring inorganic solid with a definite chemical composition and an orderly arrangement of atoms
Term
elements occurring in the earths crust
Definition
90
Term
most common mineral
Definition
silica
Term
what does silica contain
Definition
silicon and oxygen
Term
1st physical property of minerals
Definition
mineral appearance
Term
2nd property
Definition
hardness
Term
hardness scale
Definition
mohs scale
Term
hardness example
Definition
diamond
Term
hardness material
Definition
talc
Term
3rd property
Definition
luster
Term
4th property
Definition
specific gravity
Term
5th property
Definition
streak
Term
6th property
Definition
cleavage
Term
7th property
Definition
fracture
Term
1st property that makes a mineral a gem
Definition
rare
Term
2nd property
Definition
beautiful
Term
ore
Definition
a mineral or rock that can be mined for a prophet
Term
1st example of an ore
Definition
bauxite
Term
2nd example
Definition
hematite
Term
3rd example
Definition
magnite
Term
mohs scale
Definition
measures hardness from 1-10
Term
talc
Definition
1 on mohs scale, softest mineral
Term
diamond
Definition
10 on mohs scale, hardest mineral
Term
magma
Definition
molten rocks below the earths surface
Term
lava
Definition
molten rock above earths surface
Term
rock cycle
Definition
process that changes/creates rocks
Term
erosion
Definition
movement of sediment by wind or water
Term
weathering
Definition
rock broken down by water, wind, ice
Term
igneous
Definition
cooled magma or lava
Term
metamorphic
Definition
formed by heat and pressure
Term
sedimentary
Definition
compacted/cemented sediment
Term
blood diamond
Definition
illegally traded diamonds that are used to fund conflict in war torn areas
Term
what conditions are diamonds sold or traded
Definition
rough
Term
percent of blood diamond production
Definition
4%
Term
why are diamonds bad
Definition
slaves are used to extract diamonds
Term
Kimberly process
Definition
stop trade conflict diamonds and ensure that diamond purchases are not funding violence
Term
Kimberly process certification scheme
Definition
all mines must be certified
Term
why hasn't the kimb. process worked
Definition
it isn't really stopping trade
Term
zimbabwe
Definition
rebels take over mines
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