"Freeze-Dried Specimens"

Light gray, earthy.

Brownish gray, kerogen-rich; commercial oil source.

Gray andesite with phenocrysts of felspar and/or hornblende.

Introduce your students to rocks formed from deposition of sediment.

Includes: six each of conglomerate, sandstone and shale. Set of 18.

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

Gray, fine-grained, massive contact rock.

Previously Known as Ohio State University Mineral and Rock Set

Dark gray, with hornblende as the dominant mafic mineral.

Fine to medium-grained with biotite.

Foliated biotite, coarse, silvery gray with quartz-feldspar bands.

Well-cemented, medium-grained orthoquartzite.

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

Cut and finished samples with fiberoptic samples.

Represents a Wide Range of Depositional Environments and Rock Textures

Dark gray, composed mostly of pyroxene and olivine.

Gray and poorly sorted, with a gritty texture.