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Jordan-Minerals
Minerals Vocab-Jordan R.
| Question | Answer |
|---|---|
| Mineral | 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 silicon and oxygen and usually one or more other elements |
| Luster | describes the way a mineral reflects light from its surface; can be metallic or nonmetallic |
| Streak | color of a mineral when it is in powdered form |
| Cleavage | physical property of some minerals that cause them to break along smooth, flat surfaces |
| Fracture | physical property of some minerals that causes them to break with uneven, rough, or jagged surfaces |
| Gem | a beautiful, rare highly prized mineral that can be worn in jewelry |
| Ore | a deposit in which a mineral exists in large enough amounts to be mined at a profit |
| Hardness | a measure of how easily a mineral can be scratched |