| A | B |
|---|
| streak | color of the mineral's powder |
| hardness | the ability to scratch glass |
| luster | how a mineral reflects light |
| cleavage | breaking along flat surfaces |
| fracture | breaking along uneven surfaces |
| chemical properties | calcite bubbles in acid and has double vision |
| silicon-oxygen structure | tetrahedron |
| describe ways minerals form in Earth's crust | precipitation of minerals into water, evaporation, cooling and solidification of magma |
| igneous rocks form | cooling and solidification of molten rock |
| intrusive | slow, large, in the ground, magma |
| extrusive | fast, small or glassy, at the surface, Lava |
| felsic | low density, light, Se, Al, continental rock |
| mafic | high density, dark color, Mg, Fe, oceanic rock |
