The Volcanic Fine Grained Compositional Equivalent Of Granite

Its principal minerals are feldspars quartz and mica.

The volcanic fine grained compositional equivalent of granite.

One example of an aphanitic rock with felsic composition. It contains more than 68 weight of silica in composition and is granular and coarse grained in texture. This chart illustrates the generalized mineral composition of igneous rocks. A vesicular rock also known as cinder.

Andesite is the volcanic equivalent of diorite. The fine grained equivalent of granite. The fine grained volcanic equivalent of granite is basalt. Material consisting of rock glass ash and scoria ejected during violent volcanic eruptions.

An ultralight felsic vesicular rock. Andesite and diorite likewise refer to extrusive and intrusive intermediate rocks with dacite and granodiorite applying to those rocks with composition between felsic and intermediate. Granites and rhyolites compositionally equivalent to granite but of a fine grain size are composed mainly of orthoclase feldspar quartz plagioclase feldspar mica and amphibole. It consists of the plagioclase feldspar minerals andesine and oligoclase together with one or more dark ferromagnesian minerals such as pyroxene and biotite.