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Epidiorite (of Gümbel)

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A metamorphosed gabbro or dolerite in which generally fibrous amphibole (uralite) has replaced the original clinopyroxene (commonly augite). It is usually massive but may have some schistosity. A dyke rock usually composed of amphibole, plagioclase, chlorite, ilmenite and magnetite.


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Classification of Epidiorite (of Gümbel)Hide

Mineralogy of Epidiorite (of Gümbel)Hide

Essential minerals - these are minerals that are required within the classification of this rock:
AmphiboleAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ChloriteA name commonly used for undifferentiated members of the chlorite group.
Feldspar > PlagioclaseA petrological term for Albite-Anorthite Series.
IlmeniteFe2+TiO3
MagnetiteFe2+Fe3+2O4

References for Epidiorite (of Gümbel)Hide

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Fettes (et al.), Metamorphic Rocks - A Classification and Glossary of Terms (2007) Cambridge University Press

Internet Links for Epidiorite (of Gümbel)Hide

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