"PARKWAY PLASTICS, INC."

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

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.

White, fine, massive, opaque to slightly translucent.

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

Bright metallic cubic cleavages; lead ore.

Nearly pure, green crystalline forsterite.

Coarse-grained plagioclase and pyroxene with some olivine.

Classic, dark; from the Columbia Plateau.

Pale pink felsite, with small sanidine phenocrysts.

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

Students Work with Miniature Landfills in Hands-On Investigation

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

Brownish gray, kerogen-rich; commercial oil source.

Chlorite-mica with perfect slaty cleavage.

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