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.
Unique Identifiers
Mindat ID:
48165
Long-form identifier:
mindat:1:1:48165:4
GUID
(UUID V4):
(UUID V4):
f788fe7e-2ab1-4f13-8408-bac083b8c154
Classification of Volhynite
Granodiorite is in section 4 of the QAPF diagram.
Mineralogy of Volhynite
Essential minerals - these are minerals that are required within the classification of this rock:
Amphibole > Hornblende | An informal name for dark green to black amphiboles, mostly ferro-hornblende or ... |
Feldspar > Alkali Feldspar > Orthoclase | K(AlSi3O8) |
Feldspar > Plagioclase > Andesine | (Na,Ca)[Al(Si,Al)Si2O8] |
Feldspar > Plagioclase > Labradorite | (Ca,Na)[Al(Al,Si)Si2O8] |
Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Silica > Quartz | SiO2 |
Synonyms of Volhynite
Internet Links for Volhynite
mindat.org URL:
https://www.mindat.org/min-48165.html
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