"Avantor"

Black, fissile; commonly with carbonized fossil plant impressions.

4 pounds of limestone chips supplied in a box.

Earthy, porous calcareous tufa.

Buff-colored, coarse, detrital limestone, with cemented shell fragments.

Buff, coarse, crystalline “Austin Marble” with shell casts and molds.

Gray with line crinoid columnal fragments.

Light gray, earthy.

Gray to buff, with numerous ooliths and fossil fragments.

Dense and massive.

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