Black moss agate flat tumble, 30-50mm


Black moss agate flat tumble, 30-50mm

38 in stock

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Moss agate (also called mocha stone) is a semi-precious gemstone formed from silicon dioxide. It is a form of chalcedony which includes minerals of a green color embedded in the stone, forming filaments and other patterns suggestive of moss. It also sometimes resembles blue-cheese.

The field is a clear or milky-white quartz, and the included minerals are mainly oxides of manganese or iron. It is not a true form of agate, as it lacks agate’s defining feature of concentric banding.

Additional information

Weight 0.02 kg