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Minerals-chap. 3

vocab

TermDefinition
mineral a naturally occurring, inorganic solid with a definite chemical composition and an orderly arrangement of atoms
crystal a solid in which the atoms are arranged in orderly, repeating patterns
magma hot melted rock
silicate minerals that contain silicon and oxygen and usually one or more other elements
hardness a measure of how easily a mineral can be scratched
luster the way a mineral reflects light
specific gravity the ratio of a minerals weight compared with the weight of an equal volume of water
streak the color of a mineral when it is in a powdered form
cleavage minerals that break along smooth, flat surfaces
fracture minerals that break with an uneven, rough, or jagged surfaces
gem highly prized minerals because they are rare and beautiful
Created by: penguin_morgan
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