"WardsSci000452"

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

Red, medium, to coarse-grained iron oxide cement; shows hematite bands.

Black, fissile; commonly with carbonized fossil plant impressions.

Light gray, fine small clasts.

Dense and massive.

Earthy, porous calcareous tufa.

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

Hematite-cemented quartz; orthoquartzite.

Brownish black, intermediate stage between peat and bituminous coal.

White, mature, friable.