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Rocks and Minerals
Science
Question | Answer |
---|---|
Mineral | A naturally occurring solid inorganic element or compound having a uniform composition and a regularly internal structure. |
Crystal Structure | |
Moh's hardness scale | A scale rating minerals hardness from least hardest to hardest. |
Luster | The shine of the surface of a mineral. |
hardness | The measure of easily a mineral can be scratched. |
Cleavage | The breaking of certain minerals along specific planes making smooth surfaces. |
Fracture | The breaking of a mineral. |
Streak | The characteristic color of a mineral after it has been ground into a powder. |
Crystilization | The act or process of a mineral crystallizing. |
Solution | A mixture in which particles of one or more substances are distributed uniformly throughout another substance so that the mixture homogeneous at the molecular or iron level. |
Vein | A long deposit of mineral or rock that fills the void formed by a fracture or fault in another rock. |
geode | A small hollow usually rounded rock lined on the inside with inward pointing crystals. |
Element | |
Compound | |
Texture | |
Fine grained | |
coarse grained | |
porphyry grained | |
intrusive rock | |
extrusive rock |