Lesson Flashcards: Cohesive Properties of Minerals

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Definition

Cohesion

The force of attraction between molecules of the same substance

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Definition

Mineral hardness

A mineral’s resistance to scratching

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Definition

The Mohs hardness scale

A qualitative ordinal scale that measures the relative hardness of minerals, numbered from 1 (the softest mineral) through 10 (the hardest mineral)

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Definition

Mineral cleavage

The tendency of some minerals to break along planes of weakness in their crystal structures

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Definition

Mineral fracture

The appearance or pattern of a broken mineral surface that is not related to cleavage

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Definition

Mineral fusibility

The ease at which a mineral will melt

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Definition

Specific gravity

The ratio between the weight of a substance and the weight of an equal volume of water

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Definition

Ductility

The property that measures a mineral’s ability to deform under tensile forces

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Definition

Malleability

The property that measures a mineral’s ability to deform under compressional forces

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