"WardsSci000478"

Fine, common limestone; massive, and will fizzle with HCl.

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

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

Pink/gray coarse carbonate rock.

Gray, fine to medium-grained “Berea grit”.

Hematite-cemented quartz; orthoquartzite.

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

Massive, chlorite-rich.

Designed for Introductory College Petrography Labs.

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1 pound of black sand packaged in a heat-sealed bag.