Porphyry



[pawr-fuh-ree] /ˈpɔr fə ri/

noun, plural porphyries.
1.
a very hard rock, anciently quarried in Egypt, having a dark, purplish-red groundmass containing small crystals of feldspar.
2.
Petrology. any igneous rock containing coarse crystals, as phenocrysts, in a finer-grained groundmass.
[pawr-fuh-ree] /ˈpɔr fə ri/
noun
1.
(Malchus) a.d. c233–c304, Greek philosopher.
/ˈpɔːfɪrɪ/
noun (pl) -ries
1.
any igneous rock with large crystals embedded in a finer groundmass of minerals
2.
(obsolete) a reddish-purple rock consisting of large crystals of feldspar in a finer groundmass of feldspar, hornblende, etc
/ˈpɔːfɪrɪ/
noun
1.
original name Malchus. 232–305 ad, Greek Neo-Platonist philosopher, born in Syria; disciple and biographer of Plotinus
n.

type of ornamental stone, late 14c., porfurie, from Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites, a purple semi-precious stone quarried near the Red Sea in Egypt, from Greek porphyrites (lithos) “the purple (stone),” from porphyra (n.) “purple, purple dye” (see purple). Spelling Latinized mid-15c. Now used generally for a type of igneous rock without regard to color. Porphyrios was an ancient proper name.
porphyry
(pôr’fə-rē)
An igneous rock containing the large crystals known as phenocrysts embedded in a fine-grained matrix.

porphyritic adjective (pôr’fə-rĭt’ĭk)

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