inStock

Brown, fluorescent crystals intergrown in dolomite rock.

Black, Micaceous, glittery metallic.

Bright metallic cubic cleavages; lead ore.

Clear, euhedral points and sections.

Deep purple crystal clusters.

Good grade, bronze-colored ore, massive.

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

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

Classic, white chalk, massive; from Cliffs of Dover, England.

Black, high grade, foliated, greasy feel.