Gabbronorite
A rock classification type
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About Gabbronorite
A gabbroid with <5% olivine and subequal amounts of clino- and ortho- pyroxenes.
Unique Identifiers
Mindat ID:
48284
Long-form identifier:
mindat:1:1:48284:8
GUID
(UUID V4):
(UUID V4):
06738e02-1619-4b53-b48c-8f4576156fd0
Classification of Gabbronorite
Gabbro is in section 10 of the QAPF diagram.
Mineralogy of Gabbronorite
Essential minerals - these are minerals that are required within the classification of this rock:
| Feldspar > Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Pyroxene > Clinopyroxene | A petrological term for Clinopyroxene Subgroup. |
| Pyroxene > Orthopyroxene | A petrological term for Orthopyroxene Subgroup. |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
| Amphibole > Hornblende | A commonly used informal name for dark green to black amphiboles, largely in the Hornblende Root Name ... |
| Mica > Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Common Associates
Associated Minerals Based on Photo Data:
| 2 photos of Gabbronorite associated with Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| 2 photos of Gabbronorite associated with Pyroxene Group | ADSi2O6 |
Internet Links for Gabbronorite
mindat.org URL:
https://www.mindat.org/min-48284.html
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References for Gabbronorite
Reference List:
Kreuzer & Böhringer Quarry, Das Buch, Lindenfels, Bergstraße, Darmstadt, Hesse, Germany