Rocks
- rock
- texture
- igneous rock
- sedimentary rock
- metamorphic rock
Minerals
- mineral
- inorganic
- solid
- naturally-ocurring
- crystal structure
- definite chemical make up
- luster
- density
- streak
- Mohs hardness scale
- element
- compound
- cleavage
- fracture
- gemstone
- ore
- alloy