A dark igneous rock, having porphyritic texture, in which both the phenocrysts and the matrix consist of hornblende, pyroxene, and biotite.
A dark igneous rock, having a porphyritic texture in which both the phenocrysts (larger crystals) and the matrix consist primarily of pyroxene, hornblende, and biotite.
Other Word Forms
Origin of lamprophyre
- German Lamprophyr Greek lampros clear (from lampein to shine) French porphyre porphyry (from Old French porfire porphyry)
From American Heritage Dictionary of the English Language, 5th Edition
- Ancient Greek λαµπρός (laµpros) (lamprós) = "bright" and φύρω (phurō) (phýro) = "to mix".