Question

What are hard rocks called

Answer 1

Igneous / Metamorphic Rocks?

There is no single hardest rock but igneous and metamorphic rocks are called hard rocks because they are harder to break :)

hope this helps <3

Answer 2

A term applied to hard rocks, or igneous and metamorphic rocks that are distinguished from sedimentary rocks because they are typically more difficult to disaggregate. Well cemented sedimentary rocks are sometimes described as being hard, but are usually called soft rock.