gran·o·phyre 
(grănə-fīr′)
(grănə-fīr′)n.
A fine-grained granite porphyry having a groundmass with irregular intergrowths of quartz and feldspar.
[German Granophyr : grano-, grano- + (Por)phyr, porphyry (from Medieval Latin porphyrium; see PORPHYRY).]
gran′o·phyric (-fîrĭk) adj.