"PARKWAY PLASTICS, INC."

Amphibole group; black, coarse, massive.

Perfect marking pens for small lab samples, slides, beakers, sample bags, and more.

Silvery, paragranite and muscovite-rich with medium garnet crystals.

Fine, common limestone; massive, and will fizzle with HCl.

White, fibrous, silky luster.

Classic “peacock” aluminum ore.

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

Light gray, compact, hard, opaque, microcrystalline silica mineral.

Lustrous, black 'hard coal'.

Small, rounded pebbles and tightly cemented granules.

Students actively model the concept of half-life and radioactive decay.

Pyroxene group; dark green, pure cleaved fragments.

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

Buff, coarse, crystalline “Austin Marble” with shell casts and molds.

Dense and massive.

Pure, bright yellow, Frasch sulfur.