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Module 3

Across
The color of a mineral when it is broken up and powdered
A mineral is
Is the ratio of the mass of a substance to the mass of an equal volume of water
Minerals that break with rough or jagged edges are
Naturally occurring
Down
Molten material that forms
Minerals that contain silicon and oxygen
A geometric solid having four sides that are equilateral triangles
The way that a mineral reflects light from its surface
A measure of how easily a mineral can be scratched
A mineral that splits relatively easily and evenly along one or more flat planes
A solid in which the atoms
Valuable minerals that are prized for their rarity and beauty