"WardsSci000478"

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

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

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.

Gray to white metamorphosed carbonate rock.

Gray to tan clastic rock made of silt sized particles.

Gabbro is Mafic igneous rock formed deep underground consisting of olivine and pyroxene.

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

Porphyritic igneous rock containing biotite, feldspar, and hornblende.