"WardsSci000478"

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

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.

Metamorphosed rock showing foliation and rich in hornblende.

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

Massive sedimentary gypsum with a moh's hardness 2..

A textbook example of pure crystalline carbon which is extermely soft.

Massive white quartz with a moh's hardness 7.