inStock

Black, high grade, foliated, greasy feel.

Clear, euhedral points and sections.

Brown, fluorescent crystals intergrown in dolomite rock.

Good grade, bronze-colored ore, massive.

Brown, earthy, massive; used for yellow pigment.

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

Cleaned, pure, bright, metallic native copper.

Deep purple crystal clusters.

Red, classic oolitic texture.

Dark brown to black; polycrystalline zinc ore.