diorite
/ˈdaɪəˌraɪt/
noun
- A hard, dark gray or greenish-gray rock formed from cooled magma, often used in construction and sculpture.
- The ancient Egyptians used diorite to carve statues and vases.
- Diorite is strong enough to be used for paving stones in some cities.
- The countertop in the old building was made of polished diorite.