"Freeze-Dried Specimens"

Gray to white, coarse crystalline, carbonate rock.

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

Altered Igneous and Sedimentary Rocks are Clearly Represented

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

Quartzite is hard, non-foliated rock formed from metamorphosed quartz sandstones.

Sale

Gray metamorphosed shale showing "slaty cleavage".

Introduce your students to rocks formed metamorphism of other rocks.

Phyllite is a light-gray foliated rock formed from metamorphosed slate.

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

Pink/gray coarse carbonate rock.