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Minerals

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Page 1: Minerals. What is a Mineral? A mineral is inorganic. Minerals are naturally occurring. Minerals are solids. Minerals have a crystal structure. Minerals

MineralsMinerals

Page 2: Minerals. What is a Mineral? A mineral is inorganic. Minerals are naturally occurring. Minerals are solids. Minerals have a crystal structure. Minerals

What is a Mineral?

A mineral is inorganic.

Minerals are naturally occurring.

Minerals are solids.

Minerals have a crystal structure.

Minerals have a definite chemical composition.

Page 3: Minerals. What is a Mineral? A mineral is inorganic. Minerals are naturally occurring. Minerals are solids. Minerals have a crystal structure. Minerals

How do we Identify Minerals?

Color

Streak- the color of its powder.

Luster- how it reflects light.

Density- mass/ volume

Hardness- Mohs hardness scale- ranks 10 minerals from softest to hardest. Hardness is determined by a scratch test.

Crystal structure

Cleavage and fracture- the way a mineral breaks apart.

Page 4: Minerals. What is a Mineral? A mineral is inorganic. Minerals are naturally occurring. Minerals are solids. Minerals have a crystal structure. Minerals

How do Minerals Form?Hot magma cooling inside the Earth.

Lava hardening outside, on the surface of the Earth.

Elements and compounds dissolving in water (solution).

Evaporation


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