click below
click below
Normal Size Small Size show me how
science ch 9
test
| Term | Definition |
|---|---|
| minerals | are inorganic solid material found in nature . |
| rocks | such as the atoms in the crystal is unique to each mineral. |
| crystals | solid material that have such a pattern of atoms. |
| cleavage | they split into pieces with smooth regular planes that reflect light. |
| color | is the color of the mineral |
| fracture | some break into pieces and have ruff edges . |
| streak | wiping a rock across a glass tile is cleavage it leaves a streak |
| luster | luster is how it shines. |
| hardness | hardness is how hard it is and what is can scratch. |
| gems | are minerals that are rare and can be polished and celled for jewelry. |
| ore | a mineral is called a ore |