"Freeze-Dried Specimens"

Pure, white, earthy “China clay”.

Cleaned, pure, bright, metallic native copper.

Specimens To Supplement the Most Widely-Used College Lab Manual for Physical Geology

Good grade, brass-yellow copper ore, massive.

Spinel group; black, dull metallic luster; common iron oxide.

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

Pyroxene group; gray-green, coarse crystalline.

White, massive, coarse crystalline vein, Mohs’ hardness of 7.

Specimens illustrate important stages of mineral formation.

Own a carbonaceous chondrite!