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Orthopyroxene-gabbro

A rock classification type
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A gabbro with orthopyroxene > clinopyroxene


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Unique IdentifiersHide

Mindat ID:
48299
Long-form identifier:
mindat:1:1:48299:0

Classification of Orthopyroxene-gabbroHide

QAPF_P_10.png

Gabbro is in section 10 of the QAPF diagram.

Mineralogy of Orthopyroxene-gabbroHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Pyroxene > ClinopyroxeneA petrological term for Clinopyroxene Subgroup.
Pyroxene > OrthopyroxeneA petrological term for Orthopyroxene Subgroup.
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > HornblendeAnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Internet Links for Orthopyroxene-gabbroHide

References for Orthopyroxene-gabbroHide

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