Apgaitic nepheline-syenite
A rock subtype
This page is currently not sponsored. Click here to sponsor this page.
About Apgaitic nepheline-syenite
Unique Identifiers
Mindat ID:
50569
Long-form identifier:
mindat:1:1:50569:9
GUID
(UUID V4):
(UUID V4):
38825f5d-1670-42ba-a11b-c312537b952e
Classification of Apgaitic nepheline-syenite
- Rock
- Igneous rock
- Normal crystalline igneous rock
- Coarse-grained ("plutonic") crystalline igneous rock
- Foid-syenitoid
- Foid-syenite
- Nepheline-syenite
- Apgaitic nepheline-syenite
- Nepheline-syenite
- Nepheline-syenitic-rock
- Nepheline-syenite
- Apgaitic nepheline-syenite
- Nepheline-syenite
- Foid-syenite
- Foid-syenitoid
- Coarse-grained ("plutonic") crystalline igneous rock
- Normal crystalline igneous rock
- Igneous rock
Foid-syenite is in section 11 of the QAPF diagram.
Sub-divisions of Apgaitic nepheline-syenite
- Apgaitic nepheline-syenite
Mineralogy of Apgaitic nepheline-syenite
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) |
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 Apgaitic nepheline-syenite
mindat.org URL:
https://www.mindat.org/min-50569.html
Please feel free to link to this page.
Please feel free to link to this page.
References for Apgaitic nepheline-syenite
Reference List:
Ilímaussaq complex, Kujalleq, Greenland