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Rocks and Minerals

Across
minerals that are rare and can be cut and polished, giving them a beautiful appearance
melted rocks inside the earth
minerals that break with rough or jagged edges
studies the Earth's processes, products and its history
rocks formed from pieces of broken rock, shells, mineral grains, and other materials (2 words)
the color of the powdered form of the mineral
made up of one or more minerals
a solid material found in nature that has never been alive
rocks form when melted rock material from inside Earth cools (2 words)
Down
a description of the way a mineral surface looks when light reflects off of the surface
minerals that break along smooth, flat surfaces
magma that reaches to the earth's surface
a mineral that has the hardness of 1
rocks that form when existing rocks are heated or squeezed but are not melted (2 words)
used to classify minerals from 1 (softest) to 10 (hardest) 2 words
a mineral that has the hardness of 10
how easily a mineral scratches materials