Nepheline-monzodiorite
A rock classification type
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Unique Identifiers
Mindat ID:
48368
Long-form identifier:
mindat:1:1:48368:9
GUID
(UUID V4):
(UUID V4):
3c9c0a1a-3239-4a9e-a3e0-685481db5c23
Classification of Nepheline-monzodiorite
Foid-monzodiorite is in section 13 of the QAPF diagram.
Sub-divisions of Nepheline-monzodiorite
- Nepheline-monzodiorite
Mineralogy of Nepheline-monzodiorite
Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali Feldspar | A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. |
Feldspathoid > Nepheline | Na3K(Al4Si4O16) |
Mafic minerals | A petrological term for dark, rock-forming minerals rich in magnesium and/or iron. |
Sodic plagioclase | A petrological term for plagioclase feldspars dominant in sodium. |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > Hornblende | An informal name for dark green to black amphiboles, mostly ferro-hornblende or ... |
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 |
Internet Links for Nepheline-monzodiorite
mindat.org URL:
https://www.mindat.org/min-48368.html
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