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en.wikipedia.org/wiki/List_of_rock_types

The following is a list of rock types recognized by petrologists. There is no agreed number of ... Dunite - a phaneritic ultramafic rock composed of more than 90% olivine · Essexite - a silica-undersaturated .... grained metamorphic rock with light and dark alternating bands: Granulite - a high grade metamorphic rock formed ...

en.wikipedia.org/wiki/Gneiss

Gneiss is a common distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. It is often foliated (composed of layers of sheet-like planar structures). ... The lighter bands contain relatively more felsic (silicate minerals, containing ...

en.wikipedia.org/wiki/Glossary_of_geology

This page is a glossary of geology. Main article: Geology. Main category: Geology terminology ... Anorthite - The lime rich end of the plagioclase group of minerals; Silicate of calcium and .... Diorite - grey to dark grey intermediate intrusive igneous rock composed principally .... Light minerals (Quartz & Feldspar ) >60% - Acid.

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All silicate minerals contain which two elements? back 3. silicon, oxygen .... ______ is composed of alternating bands of light and dark silicate minerals. back 48.

www.studyblue.com/notes/note/n/ch-3-test/deck/10484741

Which is the coarse-grained rock which is composed mainly of quartz and ... _____ is composed of alternating bands of light and dark silicate minerals.

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When certain mineral crystals recrystallize w/orientation..the rock is said to exhibit ... below is composed of alternating bands of light and dark silicate minerals.

www.chegg.com/homework-help/essentials-of-geology-12th-edition-chapter-8-solutions-9780321957870

b. loosely coherent and composed of broken fragments that formed along a fault zone ... f. composed of alternating bands of light and dark silicate minerals ...

www.answers.com/Q/What_is_composed_of_alternating_bands_of_light_and_dark_silicate_minerals

Alternating bands are known to Geologists as Gneissose Banding, and is used to instantly ... A rare dark blue to bluish-green mineral composed of a silicate of ...

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A. loosely coherent rock composed of broken fragments that formed along a fault zone ... E. composed of alternating bands of light and dark silicate minerals.