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Nepheline-diorite

A rock classification type
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A foid-diorite where nepheline is the most abundant foid.


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Unique IdentifiersHide

Mindat ID:
48362
Long-form identifier:
mindat:1:1:48362:5

Classification of Nepheline-dioriteHide

Sub-divisions of Nepheline-dioriteHide

Mineralogy of Nepheline-dioriteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspathoid > NephelineNa3K(Al4Si4O16)
Mafic mineralsA petrological term for dark, rock-forming minerals rich in magnesium and/or iron.
Sodic plagioclaseA petrological term for plagioclase feldspars dominant in sodium.
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
Amphibole > HornblendeAnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Mica > BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Pronunciation of Nepheline-dioriteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Internet Links for Nepheline-dioriteHide

References for Nepheline-dioriteHide

Reference List:
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