porphyrite
noun
por·phy·rite
\ˈpȯ(r)fəˌrīt\
Definition of porphyrite
-s
1 : an Egyptian red porphyry
2 : a quartz-free porphyry whose feldspar is plagioclase
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Origin and Etymology of porphyrite
Latin porphyrites purple colored stone, porphyry, from Greek porphyritēs (lithos), from porphyra purple + -itēs, adjective suffix
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