"Classroom Mineral Specimens"

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.

Himalayan mineral great for teaching and display.

Good grade, bronze-colored ore, massive.

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

Pure, bright yellow, Frasch sulfur.

Dark brown to black; polycrystalline zinc ore.