"PARKWAY PLASTICS, INC."

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

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.

Pink/gray coarse carbonate rock.

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

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

What Is Making the Block Stop Moving?

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

Cut black mica cleavage sheets.

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

Good grade, bronze-colored ore, massive.

Glassy; most specimens float in water.

Hardened natural cement of calcium carbonate that binds other material such as gravel, sand, clay, and silt.

Pale pink felsite, with small sanidine phenocrysts.

Feldspar group; greenish gray alkali feldspar, coarse crystalline, some iridescence.