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Mineral Test
Stack #124684
Question | Answer |
---|---|
mineral | a naturally occuring inorganic solid that has a definite chemical composition and an orderly internal atomic structure. |
crystal | solid in which the atoms are arranged in an orderly, repeating pattern. |
magma | hot, melted rock material beneath Earth's surface. |
silicate | mineral that contains silican and oxygen and usually one or more other elements. |
hardness | measure of how easily a mineral can be scratched. |
luster | describes the way a mineral reflects light from its surface; can be metallic or nonmetallic. |
streak | color of a mineral when in powdered form. |
cleavage | physical property of some minerals that causes them to break along smooth, flat surfaces. |
fracture | physical property of some minerals that cuases them to break with uneven, rough, and jagged surfaces. |
gem | highly prized minerals |
ore | a mineral or rock that contains a useful substance that can be mined for profit. |