"WardsSci000478"

Spirally twisted oyster.

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.

Metamorphosed rock showing foliation and rich in hornblende.

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

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