"Specimens"

Black, soft; most widely mined.

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

Gray to buff, with numerous ooliths and fossil fragments.

White, very dark green, and very dark red to light red granoblastic intergrowth of wollastonite, diopside, and andradite.

Everything You Need to Organize Your Specimens

Sawn and lacquered slab showing thinly bedded truncated layers in a well-cemented sandstone. Large hand specimen.

Volcanic glass with snowflakes embedded throughout.

When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.

Small, rounded pebbles and tightly cemented granules.

Coarse-grained plagioclase and pyroxene with some olivine.

Chlorite-bearing.

Gray-to-brown basaltic, with over 50% vesicles.

Gray with line crinoid columnal fragments.

Light gray, fine-grained, well-foliated, schistose.

Fine crystalline, pure calcite.

Classic, very coarse-grained igneous texture.