A hard rock that is shiny when cut and polished.
Marble
A useful subtance that is naturally formed in the ground
Mineral
A sorf, black material used in pencils
Graphite
A hard material that is white and colorless
Quartz
A hard building material made using limestone
Concrete
An object made in solid material such as stone or metal
Statue
To make something by cutting into stone or wood
Carve
A gray-colored rock used in building
Limestone
A large rounded rock made by weathering
Boulder
