granophyre

noun grano·phyre \ˈgran-ə-ˌfī(-ə)r\

Definition of GRANOPHYRE

: a porphyritic igneous rock chiefly of feldspar and quartz with granular groundmass

— grano·phyr·ic \ˌgran-ə-ˈfir-ik\ adjective

International Scientific Vocabulary, from grano- + French -phyre (as in porphyre porphyry)

First Known Use: 1882

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