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melaphyre
noun
mel·a·phyre
\ˈmeləˌfī(ə)r\
Definition of melaphyre
-s
1 : a porphyritic rock consisting of phenocrysts of feldspar in a dark groundmass; broadly : a porphyritic igneous rock with dark-colored aphanitic groundmass and phenocrysts of various kinds
2 : a Mesozoic basalt
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Origin and Etymology of melaphyre
French mélaphyre, from méla- mela- + -phyre
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