"The Mystery of Lyle and Louise"

Red-brown to gray, coarse-grained, containing feldspar and mica.

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

Typical green-gray, fissile, clay-rich.

White, very dark green, and very dark red to light red granoblastic intergrowth of wollastonite, diopside, and andradite.

Gray to white, coarse crystalline, carbonate rock.

Dark gray with abundant gas pocket vesicles.

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