| A | B |
|---|
| hardness | the ability of a mineral to scratch or be scratched |
| luster | a mineral's appearance in light |
| streak | the color of the powder left behind when a mineral is scratched across a hard surface |
| color | the wavelength of light reflected by a mineral |
| crystal | a solid with a definite geometric shape |
| mineral | an inorganic solid with a definite crystal shape |
| cubic | shape that salt or halite grows |
| hexagonal | crystal shape of quartz |
| pyrite | fools gold, streaks black |
| hematite | iron ore that looks silvery, but streaks red |
| Iceland Spar | form of calcite that bens ligth so that you can see double images |
| nonmetallic | luster of minerals that do not look like metals |
| SiO2 | chemical formula of quartz |
| NaCl | chemical formula for salt |
| silcates | the most abundant group of minerals |
| silicon and oxygen | the most abundant elements in the earth's Lithosphere |
| calcite | mineral that will fizz when acid is applied to it |
| precipitation | minerals form from a solution that becomes supersaturated with solutes(minerals) that fall out because the molecules of water are too full |
| diamond | hardest mineral made of pure carbon |
| talc | softest mineral with a hardness of 1 |
| Mohs Scale | Hardness is tested using this measurement scale |
| cleavage | the ability of a mineral to break along smooth flat planes |
| fracture | when a mineral breaks with jagged edges |
| gem | rare and beautiful mineral |
| ore | rock that can be mined for a profit because it has a metal in it |
