"Microtomes and Microtome Assemblies"

Formalin Preserved

Camponotus. They are notorious for invading houses and destroying wood. Size: 1/4– 3/8".

Formalin preserved land snails. Available in jars or pails.

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

Formalin Preserved

1 pound of black sand packaged in a heat-sealed bag.

Utah

White, mature, friable.

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

Pink and gray bands, with biotite; shows good foliation.

Gray to brown mudstone with abundant silt.

The nocturnal hermit crab uses “borrowed” shells to protect its relatively soft body, changing shells as it grows larger.

Massive, chlorite-rich.

Fightly cemented, medium-to-coarse quartz grains.

Black, soft; most widely mined.

Slaty cleavage; contains hematite.