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Rough: Onyx, calcite, green, UT
Calcite onyx, green, UT, rough
$2.50

Calcite onyx, green, rough from UT is available in sizes 1-5 pounds plus. Most of the rough is around 2" thick.  Try your hand at carving and you might be surprised at your creative skills. Calcite is listed at 3 on the Mohs scale of hardness. (Agate and jasper at 6 & 7 hardness).