"Freeze-Dried Specimens"

Dark, coarse-grained, and composed chiefly of hornblende.

Includes: six each of marble, slate, and quartzite. Set of 18.

Common rocks and minerals for testing and identification studies are 2–3cm each.

Perfect for Introductory Lessons on Metamorphic Rocks.

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

Gray to white metamorphosed carbonate rock.

Dark-green 'verde antique', containing some chlorite and calcite.

Muscovite is a mica mineral cut to demonstrate basal cleavage.