Rock
Rock is a mineral found in the earth's crust. Rocks are hard and often somewhat brittle. Rocks are classified by the way in which they form.
Types[edit]
- Volcanic rock
- Sedimentary rock - e.g. sandstone
- Rocks formed by high pressure
Rock is a mineral found in the earth's crust. Rocks are hard and often somewhat brittle. Rocks are classified by the way in which they form.