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Gemstone Cabochons Ca to ChaCalcite Cabochons |
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Calcite is a carbonate mineral. Although pure calcite is either colorless or white, it comes in a variety of colors when impurities are present. Calcite is transparent to opaque and may occasionally be phosphorescent or fluorescent. Click on image for details |
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Chalcedony Cabochons |
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Chalcedony is a form of silica. It has a waxy luster, and may be translucent. It has a wide range of colors, most common are white to gray, blue gray and brown ranging from pale to nearly black. Many gemstones are in forms of chalcedony including agate, carnelian, chrysoprase and bloodstone. Click on image for details |
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Chapinite Cabochons |
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Chapinite a yellow and brown brecciated stone, made up largely of jasper fragments, from San Bernardino County, California. The term Brecciated is applied to a diverse group of rocks that consist of angular, fragments surrounded by a finer grained matrix. Click on image for details |
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Charoite Cabochons |
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Charoite is found in the Charo River Valley in Siberia. It is a remarkable stone with distinct color and patterns. It is composed of several minerals, mostly pure Charoite mineral, with slight amounts of microcline feldspar, aergirine-augite and tinaksite. The mineral Charoite gives this gem its unique purple color. It’s swirling patterns are formed by interlocking fibrous crystals. As a gem it is reasonably tough with a hardness between 5 and 6 and no cleavage.. The best Charoite gems have a slight chatoyancy. Click on image for details |
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Item 1863 |
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