"pathway PLASTICS, INC."

Small, rounded pebbles and tightly cemented granules.

Gray to white, coarse crystalline, carbonate rock.

Classic, dark; from the Columbia Plateau.

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

Light gray, earthy.

Chlorite-mica with perfect slaty cleavage.

Gray, fine to medium-grained “Berea grit”.

Fightly cemented, medium-to-coarse quartz grains.

Gray with line crinoid columnal fragments.

Light gray, with flow structure.

Grayish black trap rock.

Buff-colored, coarse, detrital limestone, with cemented shell fragments.

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

Unpolished metamorphic rock with silky lusture, red-brown colour, and clear parallel intergrown quartz crystals.

White and black bands of quartz, feldspar, and biotite; typical foliation.

Red, medium, to coarse-grained iron oxide cement; shows hematite bands.