"gel box"

Bright metallic cubic cleavages; lead ore.

Pure, large, transparent-to-translucent cleavages, Mohs’ hardness of 4.

Spinel group; iron-black, massive; natural magnet.

Feldspar group; good cleavages of pure soda lime feldspar; most show twinning and labradorescence.

Amphibole group; dark greenish black cleavages, somewhat columnar.

Light pink, massive, crystalline, translucent.

Black, high grade, foliated, greasy feel.

Feldspar group; pink cleavages showing perthitic texture, common potassium feldspar, Mohs’ hardness of 6.

Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.

Clear, pure cleavages, Mohs’ hardness of 2.