"Classroom Mineral Specimens"

Black, high grade, foliated, greasy feel.

Clear, euhedral points and sections.

Fluorite is Green Halide mineral with moh's hardness 4.

Sale

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

Good grade, brass-yellow copper ore, massive.

Massive white quartz with a moh's hardness 7.

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

Selenite is a Clear gypsum mineral with a moh's hardness of 2.

Talc is the softest know mineral with a moh's hardness of 1, and composed of clay.

Sale

Clear rhombs showing double refraction.

Deep purple crystal clusters.

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

Iron oxide-hydroxide mineral; reddish brown to black color; crystal habit ranges from massive to acicular.

Dark brown to black; polycrystalline zinc ore.

Good grade, bronze-colored ore, massive.

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