"Ward's Phenomena"

Pink/gray coarse carbonate rock.

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

Dark gray with abundant gas pocket vesicles.

Earthy, porous calcareous tufa.

Brownish black, intermediate stage between peat and bituminous coal.

Gray, fine, friable, with abundant small sanidine crystal fragments.

Grayish black trap rock.

Gray with line crinoid columnal fragments.

Unpolished metamorphic rock with silky lusture, red-brown colour, and clear parallel intergrown quartz crystals.

Lustrous, black 'hard coal'.