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Ward's® PURE Preserved Specimens - the best dissection experience from start to finish.

Obsidian is hard black colored, volcanic glass.

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

Earthy, yellow brown iron ore.

Chert is a microcrystalline, hard, silica mineral.

Metamorphosed rock showing foliation and rich in hornblende.

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

Gray metamorphosed shale showing "slaty cleavage".

Porphyritic igneous rock containing biotite, feldspar, and hornblende.

Pumice is light colored glassy rock that floats in water.