"Freeze-Dried Specimens"

Lustrous, black 'hard coal'.

Light gray, fine small clasts.

Dense and massive.

Hematite-cemented quartz; orthoquartzite.

Chlorite-bearing.

A variety of colorful collections to introduce rocks, minerals and fossils.

Gray to white, coarse crystalline, carbonate rock.

Samples of Intrusive and Extrusive Igneous Rocks

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

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