Pegmatoid


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Peg´ma`toid


a.1.(Min.) Resembling pegmatite; pegmatic.
References in periodicals archive ?
Pegmatoid granite, garnet-biotite gneiss and biotitesillimanite schist compose the lower part of the drilled section down to the limiting depth.
Overlying the banded ironstone is a coarse-grained, black pegmatoid consisting of augite and inverted pigeonite with minor plagioclase and olivine.
The granites are mainly massive, pegmatoid texture is common, gneissic varieties are rare, while porphyraceous texture occurs very seldom.
Pegmatoid and gabbroid layers in Jurassic Preakness and Hook Mountain basalts, Newark Basin, New Jersey.
Typical fabrics include a weak to strong foliation trending ENE, gradational contacts and metasomatic changes to pegmatoid and mylonitic rock types.
Where the UG2 is narrower than the minimum stoping width of 1 m, a proportion of the footwall pegmatoid or hanging-wall pyroxenite is also mined.