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Dictionary.com · The American Heritage® Dictionary
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Chalcedony is a catch all term that includes many well known varieties of cryptocrystalline quartz gemstones. They are found in all 50 States, in many colors and color combinations, and in sedimentary, igneous, and metamorphic rocks.
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Information on the mineral chalcedony ... CHALCEDONY; Microcrystalline variety of Quartz chalcedony - mineral 75.1.4.1vr ... There are literally hundreds of variety names given to Quartz and Chalcedony. Some are not scientifically recognized, but are universally used. The important most important varieties are listed below.
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Chalcedony, also spelled Calcedony, is a very fine-grained (cryptocrystalline) variety of the silica mineral quartz. It has a waxy luster and appears in a great variety of colors -- usually blue-white, buff, light tan, gray, yellow or brown.
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Chalcedony - Wikipedia, the free encyclopedia
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Traditionally defined as a fibrous cryptocrystalline variety of Quartz , more recently, it has been shown that much Chalcedony is a mixture of Quartz and Mogánite , another silica mineral. ... Show Chalcedony Photos (652)
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Chalcedony information, Chalcedony jewelry, Chalcedony gems. ... Technically, chalcedony (kal SED' uh nee) is any form of microcrystalline or cryptocrystalline quartz, (meaning any form of quartz whose crystals are too small to be seen without high magnification.) ; ...
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Chalcedony is a form of quartz which contains many varieties, agate, aventurine, chrysoprase, cornelian, onyx, jasper, bloodstone, onyx, chrysoprase... ... Chalcedony is a Form of Quartz Related to Amethyst and Citrine; Photo to Follow...
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The Source For Chalcedony Information, Chalcedony Cabochons, Jewelry and More ... Chalcedony is a catch all term that includes many well known varieties of cryptocrystalline quartz gemstones. They are found in all 50 States, in many colors and color combinations, and in sedimentary, igneous, and metamorphic rocks.
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