Nepheline-syenitic-rock
A rock classification type
This page is currently not sponsored. Click here to sponsor this page.
About Nepheline-syenitic-rock
Unique Identifiers
Mindat ID:
48332
Long-form identifier:
mindat:1:1:48332:4
GUID
(UUID V4):
(UUID V4):
02ecebcb-655b-4a3b-98af-e84096c2b3af
Classification of Nepheline-syenitic-rock
Foid-syenitic-rocks are in sections 11 and 12 of the QAPF diagram.
Sub-divisions of Nepheline-syenitic-rock
- Nepheline-syenitic-rock
- Nepheline-syenite
- Cancrinite nepheline-syenite
- Eudialyte-bearing nepheline-syenite
- Grennaite
- Juvite
- Kaxtorpite
- Lakarpite
- Lardalite
- Ledmorite
- Mariupolite
- Pegmatitic nepheline syenite
- Rischorrite
- Saibarite
- Alkali-feldspar nepheline-syenite
- Pseudoleucite syenite
- Malignite
- Apgaitic nepheline-syenite
- Foyaite
- Litchfieldite
- Assyntite
- Borolanite
- Ditroite
- Canadite
- Melanocratic nepheline-syenite
- Nepheline-monzosyenite
- Nepheline-syenite
Mineralogy of Nepheline-syenitic-rock
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 Nepheline-syenitic-rock
mindat.org URL:
https://www.mindat.org/min-48332.html
Please feel free to link to this page.
Please feel free to link to this page.
References for Nepheline-syenitic-rock
Reference List:
Papeno'o Valley, Hitiaa O Te Ra, Tahiti Island, Windward Islands, Society Islands, French Polynesia, France