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Chrysocolla mineral. Chrysocolla (hydrous copper silicate, blue) is a semi-precious mineral found in stalactic masses (stalactites). In its pure form chrysocolla is soft and fragile and is more often used when found fused with other gemstones, such as agate. Chrysocolla is formed in the oxidation zones of copper-rich ore deposits and is an important surface indicator pinpointing the presence of copper. Chrysocolla is itself a secondary copper ore. As a by-product of refining chrysocolla the rare metal germanium is produced, which is used in fiber optics and infrared lenses. Object size approx. 15mm.
May 1st, 2013
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