"WardsSci000478"

Large, black, rounded tektite, 1 1/2". Thailand.

Powdered bentonite clay 200 mesh, sodium saturated.

Sale

Feldspar group; blue-green, microcline, triclinic, ³/₄". Colorado.

This coloful mix of naturally colored polished stones are available in a variety of tumbled sizes. 1 lb. package.

Earthy, yellow brown iron ore.

Light pink, massive, crystalline, translucent.

Sale

Kaolin is a white clay mineral that has vast industrial uses

Sale

Metamorphosed rock showing foliation and rich in hornblende.

Hemalite is a Massive, dense red to gray, classic example of iron ore.

Specimens illustrate important stages of mineral formation.

Sale