Mineral Specimens

Pure kaolinite powder, 200 mesh.

Light gray, compact, hard, opaque, microcrystalline silica mineral.

Crystals and crystal sections up to 1", Mohs’ hardness of 9.

Amphibole group; black, coarse, massive.

Cleaned, pure, bright, metallic native copper.

Black, Micaceous, glittery metallic.

Deep blue, massive, with nepheline; key feldspathoid.

Great for geology hardness tests.

Brown, fluorescent crystals intergrown in dolomite rock.

Clear, euhedral points and sections.