"serv Dial Sud & sars"

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

Amphibole group; black, coarse, massive.

A classroom set that covers the major types of coal.

Fresh Green forsterite, classic “twin sisters” dunite.

Light pink, massive, crystalline, translucent.

Great for geology hardness tests.