holocrystalline


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holocrystalline

(ˌhɒləˈkrɪstəˌlaɪn)
adj
(Geological Science) (of igneous rocks) having only crystalline components and no glass. Compare hemicrystalline
References in periodicals archive ?
This sample is a holocrystalline, greyish pink, medium-grained, equigranular granite dominated by quartz; perthitic potassium feldspar grains, which are moderately altered to sericite; plagioclase grains, which are altered to sericite in their central parts (Fig.
Olivine almost disappears in the holocrystalline inner parts of the lamproitic main body, but is locally common in the glassy lavas where there is a porphyric texture with glassy to microcrystalline groundmass.
Petrographically gabbroic rocks are melanocratic, holocrystalline, medium to coarse grained and subpoilikitic in texture.
Tholeiitic basalts have a fine grained holocrystalline groundmass, indicating a lava flow with a fairly rapid crystallization process.
Dredging from bathymetric highs recovered pillow lavas, pillow fragments, and holocrystalline rocks, all basaltic in composition.
There, the gabbros, mostly norite, occasionally troctolite are generally coarse-grained, equigranular to gently pegmatitic, show a texture from cumulate to holocrystalline and are composed by labradorite, augite and subordinate bronzite, with minor amounts of magnetite, ilmenite, and alteration products.
CT4H appears holocrystalline with no vesicles and with equigranular crystals approximately 0.