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Natural Malachite Cabochons

Hardness: 3.5 - 4
Mineral: Copper Carbonate Hydroxide
Treatment: None
Care: Wash with soapy water. Avoid harsh detergents. Never clean ultrasonically or steam clean.

The name malachite came from the Greek - mallow-green stone - because of its resemblance to the leaves of the Mallow plant.  The  banding on malachite cabochons is a feature of this copper mineral.