The Stone Age was a broad prehistoric period where humans widely used stones and stone making for many different types of tools.
We use stone mostly as a building material, to pave floor, build walls, etc. Some particular types of stone have special uses. Flint is good for making sparks (in cigarette lighters) and marble is...
Different stones are used for making the same Pokemon type evolve!
What are petoskey stones used for?
Keystone