Nepheline-gabbro
A rock classification type
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Unique Identifiers
Mindat ID:
48372
Long-form identifier:
mindat:1:1:48372:2
GUID
(UUID V4):
(UUID V4):
49db8b2b-9141-48e3-aed0-027a55a434b9
Classification of Nepheline-gabbro
Foid-gabbro is in section 14 of the QAPF diagram.
Sub-divisions of Nepheline-gabbro
- Nepheline-gabbro
Mineralogy of Nepheline-gabbro
Essential minerals - these are minerals that are required within the classification of this rock:
Calcic plagioclase | A petrological term for plagioclase series feldspars dominant in calcium. |
Feldspathoid > Nepheline | Na3K(Al4Si4O16) |
Mafic minerals | A petrological term for dark, rock-forming minerals rich in magnesium and/or iron. |
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 |
Internet Links for Nepheline-gabbro
mindat.org URL:
https://www.mindat.org/min-48372.html
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References for Nepheline-gabbro
Reference List: