"WardsSci000478"

Small, rounded pebbles and tightly cemented granules.

Massive, chlorite-rich.

Glassy; most specimens float in water.

Represents a Wide Range of Depositional Environments and Rock Textures

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

Pink/gray coarse carbonate rock.

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

Silvery, paragranite and muscovite-rich with medium garnet crystals.

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

Grayish black trap rock.

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