Minerals Flashcards by Hannah Young | Brainscape

Q

Two properties that can’t be determined with sight

A

Streak

Hardness

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Q

Most easily observable property

A

Color

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Q

Tendency if a mineral to split easily

A

Cleavage

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Q

How is streak determined?

A

By rubbing the mineral on a streak plate

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Q

Softest mineral

A

Talc

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Q

Quartz chemical formula

A

SiO2

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Q

Bright yellow mineral

A

Sulfur

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Q

Magnetic mineral

A

Magnetite

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Q

Mineral in slate

A

Mica

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Q

Non metallic lusters

A

Earthy
Waxy
Pearly
Glassy

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Q

Largest group of rock forming minerals

A

Silicates

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Q

Way minerals shines in reflected light

A

Luster

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Q

Special properties of minerals

A

Magnetic

Reacts with acid

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Q

One reason to use color I’m caution when in ID of mineral

A

Many minerals have the same color

Minerals can be more than one color

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Q

Why is pearl not a mineral?

A

Not formed by an inorganic process

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Q

Three types if fracture

A

Splintery
Uneven
Concodial