1. Naturally occurring
2. Inorganic
3. Solid
4. Definite chemical composition
5. Orderly internal crystal structure

1. Feldspar is the most abundant mineral in the Earth's crust. There are several types of feldspar.
2. Quartz is the second most abundant mineral in the Earth's crust
3. Other common rock-forming minerals include:
   1. Muscovite mica
   2. Biotite mica
   3. Hornblende
   4. Augite
   5. Olivine
   6. Calcite is common in some sedimentary rocks
4. Minerals can have economic value or industrial uses:
   1. Diamond
   2. Native gold
   3. Native copper
   4. Barite
   5. Kaolinite
   6. Talc
   7. Gypsum
   8. Corundum (ruby and sapphire)
   9. Pyrite
   10. Native sulfur
   11. Magnetite

A rock is an aggregate (mix) of one or more minerals

Examples of rock names

1. Granite
2. Basalt
3. Pumice
4. Sandstone
5. Limestone
6. Chalk
7. Shale
8. Marble
9. Schist
10. Slate