"Classroom Minerals"

Good grade, green, massive; copper ore.

Black, high grade, foliated, greasy feel.

Clear, euhedral points and sections.

An educational display.

Nearly pure, green crystalline forsterite.

Shiny crystal clusters and crystalline groups, this 'fools gold' is brassy and leaves a black streak.

Brown, earthy, massive; used for yellow pigment.

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

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

Dark brown to black; polycrystalline zinc ore.

Feldspar group; white-to-gray cleavages of sodic plagioclase; some show twinning.

Deep purple crystal clusters.

Good grade, bronze-colored ore, massive.

Feldspar group; greenish gray alkali feldspar, coarse crystalline, some iridescence.

Light pink, massive, crystalline, translucent.

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