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Minerals Vocab
Term | Definition |
---|---|
density | the amount of mass in a given volume of the substance |
ores | rocks that contain enough of a mineral to be mined for a profit |
streak | the color left behind when a mineral is scraped across a surface |
crystal | a solid in which the atoms are arranged in an orderly, repeating three-dimensional pattern |
mineral | a solid structure that forms in nature, has a definite chemical makeup and has a crystalline structure |
cleavage | the tendency of a mineral to break along flat surfaces |
lava | molten rock that has reached the Earth’s surface |
luster | the way in which light reflects from a mineral’s surface |
element | a substance that contains only one type of atom |
fracture | the tendency of a mineral to break in irregular pieces |
hardness | a mineral's resistance to being scratched |
magma | molten rock inside the Earth where many minerals grow |