"Freeze-Dried Specimens"

Compact Plant Fiber Masses.

Black, fissile; commonly with carbonized fossil plant impressions.

Light gray, earthy.

Brownish gray, kerogen-rich; commercial oil source.

Introduce your students to rocks formed from deposition of sediment.

Includes: six each of conglomerate, sandstone and shale. Set of 18.

Common rocks and minerals for testing and identification studies are 2–3cm each.

Well-cemented, medium-grained orthoquartzite.

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

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

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

4 pounds of limestone chips supplied in a box.

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

Cemented glacial gravel.

Small, rounded pebbles and tightly cemented granules.

Green shale which contains approximately 85% Illite. Impurities may include other clay minerals, such as micas and feldspars.

1 pound of black sand packaged in a heat-sealed bag.