depends on the rock
They can be made out of many materials. The most common material is limestone.
Mountains are made up of Earth and rock materials.
im not sure what materials create rocks and that question makes no sense
Mineral Materials are materials that were made by using minerals. Ex: Rock is a mineral, it is used to make metal and/or tools.
Pumice
the Earth is made of rock, magma deep in the Earth's crust, and some dirt here and there. the Moon is made of rock.
No, it is made of iron, or steel. Unless you are prefering to the airheads that are made of rock and other materials. Airheads were made back in the Indian days.
Saturn has rings made of rock particles and ice.Those are the materials I am aware of. There can be many more materials.
Blackboards were originally made of slate. Modern "blackboards" are white and are made of synthetic materials.
That'd be a conglomerate rock. They are formed by either compacting, or cementing of weathered rocks.
Lava, or Magma as it is called before it reaches the surface is made out of molten rock.
They didn't make watches,the made sundials,and they were probably made of rock or clay.