Specimens

Brown, fluorescent crystals intergrown in dolomite rock.

Black, Micaceous, glittery metallic.

Deep purple crystal clusters.

Clear, euhedral points and sections.

Good grade, bronze-colored ore, massive.

Great for geology hardness tests.

Bright blue crystalline veins and coatings in a matrix of mixed copper ore.

Black, high grade, foliated, greasy feel.

Brown, earthy, massive; used for yellow pigment.

Small 1–1.5 mm crystal, octahedrans or cubes, Mohs” hardness of 10.