"PARKWAY PLASTICS, INC."

Coarse-grained plagioclase and pyroxene with some olivine.

Classic, dark; from the Columbia Plateau.

Useful for individual or group study of molecules, these model sets offer an interactive learning opportunity.

3D Signs ensure marked areas are visible from all angles.

Two or more magnifiers may be snapped together to produce increased magnification and to illustrate the principles of compound lenses.

Pink/gray coarse carbonate rock.

Coarse-grained, with microcline, biotite and horblende phenocrysts.

Pale pink felsite, with small sanidine phenocrysts.

White, fine, massive, opaque to slightly translucent.

Shiny black volcanic glass showing conchoidal fracture and some spherulites.

Gray, fine, friable, with abundant small sanidine crystal fragments.

Bright blue crystalline veins and coatings in a matrix of mixed copper ore.

Bright metallic cubic cleavages; lead ore.

Sterilizing tote boxes are molded from natural polypropylene, and are suitable for food use.

Examine the various tissues in vascular bundles found in these vertical section of a dicot and Monocot leaves.

Students Work with Miniature Landfills in Hands-On Investigation