"WardsSci000452"

Specially selected subsoil, 1 lb.

Specially selected topsoil, 1 lb.

4 pounds of limestone chips supplied in a box.

Brownish gray, kerogen-rich; commercial oil source.

Light gray, earthy.

Carbonate rock formed by the precipitation from water.

Sale

Gray to buff, with numerous ooliths and fossil fragments.

Conglomerate is a sedimentary rock made up rounded quartz pebbles.

Breccia is a sedimentary rock made up of angular rock fragments.

Cemented glacial gravel.

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

Dark, waxy, bitumin-rich.

Compact Plant Fiber Masses.

Useful for weathering and erosion, soil formation, porosity and permeability, or other general earth science labs.

Black, soft; most widely mined.

Gray and poorly sorted, with a gritty texture.