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Earth Science - Minerals

Across
Gives a mineral a clue to its identity.
Hot melted rock beneath the earth's surface.
Durable, lightweight metal.
The way a mineral breaks with rough jagged edges.
Does not come from living matter. Does not contain carbon.
A mineral that can be mined for profit.
The largest group of minerals, they contain silicon & oxygen.
The way a mineral breaks along smooth flat surfaces.
Down
The physical property of a mineral that describes how much light is reflected from its surface.
A valuable mineral, that is highly prized, rare & beautiful.
A measure of how easily a mineral can be scratched.
Solid made up of cubes in repeating patterns.
Natural inorganic solid with a defined structure.
The color of a mineral when it is powdered.