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Introduction
| Consisting of copper, arsenic and sulfur and small amounts of iron and zinc may be present. Enargite may contain some antimony in place of the arsenic. Enargite is usually found in prismatic crystals and are typically striated lengthwise.With a metallic luster, Enargite is notable for its grayish black color and streak. However, a tarnish will dull the luster of the crystals and the black color may turn into silver white over time if exposed to sun or air.An ore of copper, Enargite can also be a source of arsenic oxide. Enargite is found locally in the Chin-Kua-Shih gold and copper deposits in Taipei and is therefore an economically valuable mineral for it contains gold, silver and copper. |
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