Mineral Review

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Mineral Review
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A substance formed by chemical union of two or
more elements
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Compound
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What is

• Naturally occurring
• Inorganic
• Solid
• Definite chemical composition
• Crystal structure

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Mineral
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Minerals form through

• Evaporation of a solution
• Hot water solution
• Crystallization or cooling of molten material

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The objects below are regular geometric shapes
with a repeating atomic structure, what are they
called?
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Crystals
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The powder left over after scratching an unglazed
porcelain plate demonstrates which mineral
property?
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Streak
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The light reflects off of the samples below,
which mineral property?

• Pearly
• Metallic
• Glassy
• Dull
• Earthy

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Luster
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If a mineral such as mica breaks evenly along a
plane then the mineral property is
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Cleavage
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If the mineral breaks into many uneven pieces the
mineral property is
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Fracture
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The resistance to scratch is which property?

• Talc
• Gypsum
• Calcite
• Fluorite
• Apatite
• Feldspar
• Quartz
• Topaz
• Corundum
• Diamond

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Hardness
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Which mineral is the hardest on Mohs Hardness
Scale?
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Diamond
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Which mineral is the softest on Mohs Hardness
Scale?
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Talc
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What is the name of the scientists who came up
with the Hardness Scale?
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Friedrich Moh

• Not this guy!

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Which tools can you substitute for the minerals
in Mohs Hardness Scale?

• Fingernail
• Penny
• Knife or a steel nail
• Glass

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UV or Black light causes this mineral to glow,
which property?
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Fluorescence
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What happens when you pour acid onto calcite?
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It fizzes

• This is a special mineral property

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The mineral property that often fools people is
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Color

• It is the least useful property when it comes to
  identification