Online Encyclopedia

CHALCEDONY, or CALCEDONY (sometimes c...

Online Encyclopedia
Originally appearing in Volume V05, Page 804 of the 1911 Encyclopedia Britannica.
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CHALCEDONY, or CALCEDONY (sometimes called by old writers cassidoine)  , a variety of native
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silica, often used as an ornamental stone . The
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present application of the
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term is comparatively
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modern . The " chalcedonius " of Pliny was quite a different
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mineral, being a green stone from the copper-mines of Chalcedon, in
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Asia Minor, whence the name . There has been some confusion between chalcedony andthe ancient "carcedonia," a stone which seems to have been a carbuncle from Africa, brought by way of Carthage (KapXi6wv) .

End of Article: CHALCEDONY, or CALCEDONY (sometimes called by old writers cassidoine)
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