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Ouachitite

A rock subtype
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A dark-colored aphanitic porphyry composed of a glassy ground-mass with large phenocrysts of biotite and very subordinate augite and magnetite; a fourchite rich in biotite.


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Unique IdentifiersHide

Mindat ID:
54552
Long-form identifier:
mindat:1:1:54552:7

Similar NamesHide

OuachtiteA rock subtype

Classification of OuachititeHide

Mineralogy of OuachititeHide

Essential minerals - these are minerals that are required within the classification of this rock:
GlassA non-crystalline, amorphous, relatively homogeneous solid material with a random liquid-like structure generally ...
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
MagnetiteFe2+Fe3+2O4
Pyroxene > Clinopyroxene > Augite(CaxMgyFez)(Mgy1Fez1)Si2O6

Internet Links for OuachititeHide

References for OuachititeHide

Reference List:
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