Dictionary.com · The American Heritage® Dictionary
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Porphyry (geology) - Wikipedia, the free encyclopedia
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Porphyry - Wikipedia, the free encyclopedia
Porphyry (pronounced /ˈpɔrfɪri/ , from the Greek porphyrios "purple-clad") may refer to: •Porphyry (geology), a plutonic rock with large crystals in a fine-grained matrix •Porphyry (philosoph...
en.wikipedia.org/wiki/Porphyry |
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Porphyry of Gaza - Wikipedia, the free encyclopedia
Saint Porphyry or Saint Porphyrius (Greek: Πορφύριος, Porphyrios ; Latin: ; Slavonic: Порфирий, Porfiriy ) (ca. 347–420), Bishop of Gaza 395 - 420, known from the account in his Life for Chri...
en.wikipedia.org/wiki/Porphyry_of_Gaza |
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Porphyry is one of the major igneous rock types. ... Geologists use the term porphyry only with a word in front of it describing the composition of the groundmass. This image, for instance, shows an andesite porphyry. The fine-grained part is andesite and the phenocrysts are light alkali feldspar and dark biotite.
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porphyry (pôr'furē) [key], igneous rock composed of large, conspicuous crystals (phenocrysts) and a groundmass in which the phenocrysts are embedded. ... Some authorities consider the expression “porphyritic rock” better usage than porphyry, since the term refers only to the texture of the rock—not its...
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A Sunshine for Women's Book Summary: Read excerpts from this attempted reconstruction of Porphyry's _Against the Chrisitans_. ... Fifteen volumes long, Against the Christians was written by the Roman pagan Porphyry circa 280 and was an educated man's studied attack on Christian theology. An exceedingly powerful...
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