A | B |
Luster | The way a mineral reflects light. |
Cleavage | Property where the mineral breaks along flat plane surfaces. |
Streak | The powdered remains of a mineral on a tile. |
Hardness | Property where a mineral is judge by how easily it is scratched. |
Mineral | Solid element or coumpound from the Earth's crust with a chemical composition and crystal shape. |
Pyrite | "Fool's Gold" |
Quartz | Useful mineral for building, glassmaking, and electronics. |
Ores | Minerals that contain metals. |
Magnetite | Magnetic mineral |
Hematite | Soft red mineral with a red streak. |
Mica | Soft mineral that is colorless and cleaves into flat thin pieces. |