"PARKWAY PLASTICS, INC."

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

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

Economy LDPE dropper bottles.

Pink/gray coarse carbonate rock.

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

Classic, dark; from the Columbia Plateau.

Nearly pure, green crystalline forsterite.

Coarse-grained plagioclase and pyroxene with some olivine.

Good grade, bronze-colored ore, massive.

Cut black mica cleavage sheets.

The smaller size of these goggles make them perfect for younger students.

Protect students from chemical splashes and impact with a flexible ridge around a PVC frame.

Pale pink felsite, with small sanidine phenocrysts.

Small, rounded pebbles and tightly cemented granules.

Lustrous, black 'hard coal'.

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