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Science > Minerals > Flashcards

Minerals Flashcards

1
Q

Mineral

A

A substance that is formed naturally in the Earth, is inorganic, has a definite chemical composition and has a crystal structure.

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2
Q

Streak

A

The color of a mineral’s powder when it is rubbed against a porcelain plate

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3
Q

Luster

A

The way the surface of a mineral reflects light

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4
Q

Inorganic

A

Not derived from living matter

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5
Q

Crystal

A

A solid formation that follows a pattern

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6
Q

Hardness

A

The ability of a mineral to scratch or be scratched by another mineral

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7
Q

Cleavage

A

The tendency of crystals and minerals to break along definite planes resulting in smooth surfaces

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8
Q

Fracture

A

The appearance of a freshly broken surface on a mineral that has a rough or irregular surface

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9
Q

Mohs Hardness Scale

A

A hardness scale used to classify minerals

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10
Q

Formula

A

A set of chemical symbols showing the makeup of a chemical compound

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