"The Mystery of Lyle and Louise"

Dense and massive.

Hematite-cemented quartz; orthoquartzite.

Chlorite-bearing.

Typical green-gray, fissile, clay-rich.

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

Chlorite-mica with perfect slaty cleavage.

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

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

Dark, waxy, bitumin-rich.

Dark gray with abundant gas pocket vesicles.