Lesson Flashcards: Optical Properties of Minerals

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Definition

Mineral color

The optical property that is caused by the absorption or reflection of different wavelengths of white light

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Definition

Mineral transparency

The degree to which light can pass through a mineral

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Definition

Play of color

An optical effect resulting in flashes of colored light from the surface of a mineral

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Definition

Transparent mineral

A mineral that allows light to pass through it without scattering

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Definition

Translucent mineral

A mineral that allows light to pass through it with light rays scattered and refracted at its surface

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Definition

Mineral luster

The appearance of a mineral surface in terms of its light-reflecting qualities

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Definition

Mineral streak

The color of a mineral in its powdered form that can be obtained by rubbing the mineral on a hard white surface

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Definition

Allochromatic minerals

Minerals that display more than one color

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Definition

Opaque mineral

A mineral that does not allow light to pass through it

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