"PARKWAY PLASTICS, INC."

Gray to white, coarse crystalline, carbonate rock.

Classic, dark; from the Columbia Plateau.

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

Basic Pelvic exam practice!

Gray, fine-grained, massive contact rock.

Fine to medium-grained with biotite.

Gray to buff, with numerous ooliths and fossil fragments.

Clear, pure cleavages, Mohs’ hardness of 2.

Indestructible, high-quality, fiberglass tape.

For maximum protection, this dispenser is designed with a safety razor that slides and cuts with no danger to fingers.

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

Pure, bright yellow, Frasch sulfur.

Hands-On Manipulation with Colorful Models.

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

Light gray, earthy.

Chlorite-mica with perfect slaty cleavage.