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Nepheline-phonolite

A rock classification type
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06516000017272473006678.jpg
Nepheline-phonolite

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
06516000017272473006678.jpg
Nepheline-phonolite

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
06133950017271952588136.jpg
Nepheline-phonolite

Mount Kenya, Mount Kenya National Park, Meru County, Kenya
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About Nepheline-phonoliteHide

A phonolite where nepheline is the dominant foid.

Note: Phonolites containing nepheline and/or haüyne as the main foids are commonly described simply as “phonolite”.


Unique IdentifiersHide

Mindat ID:
51881
Long-form identifier:
mindat:1:1:51881:5

Classification of Nepheline-phonoliteHide

Sub-divisions of Nepheline-phonoliteHide

Mineralogy of Nepheline-phonoliteHide

Essential minerals - these are minerals that are required within the classification of this rock:
Feldspar > Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
Feldspathoid > NephelineNa3K(Al4Si4O16)

Internet Links for Nepheline-phonoliteHide

References for Nepheline-phonoliteHide

Reference List:
Quick NavTopAbout Nepheline-phonoliteUnique IdentifiersClassification Sub-divisions Mineralogy Internet Links References
 
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