granophyre

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gran·o·phyre

 (grăn′ə-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·phyr′ic (-fîr′ĭk) adj.

granophyre

(ˈɡrænəʊˌfaɪə)
n
(Geological Science) a fine-grained granitic rock in which irregular crystals of intergrown quartz and feldspar are embedded in a groundmass of these minerals
[C19: from gran(ite) + -phyre after porphyry]
granophyric adj

gran•o•phyre

(ˈgræn əˌfaɪər)

n.
a porphyritic granitic rock with a micrographic intergrowth of the minerals of the groundmass.
[1880–85; grano- + French (por)phyre porphyry]
gran`o•phy′ric (-ˈfɪr ɪk) adj.
References in periodicals archive ?
The rock compounds of the area include: granite, granodiorite, monzonite and diorite with identified granular, porphyritic and granophyric texture in microscopic thin section.
Patches of fine-grained granophyric feldspar and quartz in central areas of the dyke usually show elongated needles of apatite.
The initial mapping conducted late 2010 and early 2011 on Treasure Island identified a granophyric horizon in a dolerite/gabbro package of rocks, which indicated an environment with the right rock types, similar to that found further north in the belt at Kambalda and Kalgoorlie.
It is composed by strongly fractured granophyric rocks, cross-cut by sub-vertical basic and acidic/felsic dykes with structural trend N65[degrees] and EW respectively.
A primary three-phase fluid inclusion assemblage contained within growth-zoned quartz crystals in the granophyric phase of the Nipissing diabase was chosen as representative of the highest temperature fluids responsible for ore deposition at Cobalt.
The groundmass is granophyric, partly spherulitic, and contains miarolitic cavities.
The drilling has intersected a previously unreported succession of layered mafic intrusive rocks including granophyric gabbro, anorthositic gabbro, hornblende pyroxenite and olivine pyroxenite, containing up to 30 percent combined ilmenite and magnetite.
It also tends to be finer grained, and interstitial granophyric texture is typically present.
17-57] from rim to core) in a fine-grained groundmass consisting of granophyric quartz and K-feldspar.
From our initial mapping we identified a granophyric horizon in a dolerite/gabbro package of rocks which indicated that we have the right rock types, similar to that found further north in the belt at Kambalda and Kalgoorlie.
Granophyric (more wormy) to graphic (more cuneiform) intergrowths between feldspar and quartz are evident in three samples (DDH 79-6-174.
Granophyric texture occurs only in samples from the northwestern part of the intrusion; that area may represent the shallowest part at the time of emplacement.