| A | B |
|---|
| cleavage | physical property of some minerals which causes them to break along smooth, flat surfaces |
| rock | mixture of 1 or more minerals |
| luster | mineral reflects light from its surface |
| specific gravity | property of mineral which is the ratio of mineral's weight compared with weight of an = volume of water |
| hardness | property of mineral; measure of how easily a mineral can be scratched |
| streak | color of a mineral when it is in powdered form |
| mineral | naturally occurring inorganic solid that has a definite chemical composition + orderly internal atomic structure |
| fracture | physical property of some minerals that causes them to break with uneven, rough, or jagged surfaces |
| metallic + glassy | 2 types of FRACTURE, not CLEAVAGE |
| ore | due to usefulness + profitibility, these are mined |
| ilmenite + rutile | 2 minerals mined for titanium |
| lightness + durability | properties that make titanium useful for tennis rackets, wheelchairs, + artificial body parts |
| silicon + oxygen | most minerals are composed of these, combined with other elements |
| cubic | salt crystals are always this shape |
| graphite | one of the softest minerals |
| sugar | definitely NOT a mineral |
| titanium | durable, lightweight, nontoxic |
| vein mineral deposits, magma-formed rocks, + beach sands | titanium ores can occur as these |
| inorganic + crystalline solid | 2 of 4 characteristics of minerals |
| unique chemical composition + formed by natural processes | 2 of 4 characteristics of minerals |
