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Volhynite

A rock subtype
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A local name for a microgranodiorite which occurs as dykes and contains phenocrysts of labradorite, hornblende and biotite in a groundmass of andesine, orthoclase and quartz.


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Unique IdentifiersHide

Mindat ID:
48165
Long-form identifier:
mindat:1:1:48165:4

Similar NamesHide

VilniteA synonym of Wollastonite

Classification of VolhyniteHide

QAPF_P_4.png

Granodiorite is in section 4 of the QAPF diagram.

Mineralogy of VolhyniteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Amphibole > HornblendeAnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Feldspar > Alkali Feldspar > OrthoclaseK(AlSi3O8)
Feldspar > Plagioclase > Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Feldspar > Plagioclase > Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Silica > QuartzSiO2

Synonyms of VolhyniteHide

Internet Links for VolhyniteHide

References for VolhyniteHide

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