What is chalcedony?
by 
Craigor in memory of Rev. Fleming
ANSWERS: 4
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Chalcedony is an umbrella term for a specific variety of quartz, or silicon dioxide, which comes in an assortment of sizes and colors. As a general rule, chalcedony is translucent to semi-transparent, and often has a milky or obscured color. It also takes well to polish, and some varieties of chalcedony seem to glow from within after prolonged polishing. The stone is typically classified by color, as chemically all chalcedony is identical. Popular examples of chalcedony include carnelian, agate, bloodstone, flint, and jasper, among many other stones.
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In layman's terms .... its a fibrous variety of Quartz
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its' a mineral/rock.
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a microcrystalline, translucent variety of quartz, often milky or grayish. according to dictionary.com
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