Naturally occurring ferric iron sanidine from the Leucite Hills lamproite

Naturally occurring ferric iron sanidine from the Leucite Hills lamproite

The Leucite Hills feldspars described here have the most Fe-rich, naturally-occurring compositions yet recorded, in which up to 70 mol% of the KAlSi3O8 molecule is replaced by K Fe3+Si3O8.

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Bibliographische Detailangaben
Veröffentlicht in:The American mineralogist 1996-01, Vol.81 (1-2), p.229-237
Hauptverfasser: Kuehner, Scott M, Joswiak, Dave J
Format: Artikel
Sprache:eng
Schlagworte:
alkali feldspar
Crystallization
Crystals
electron microscopy data
feldspar group
framework silicates
Geology
Hills
igneous rocks
Iron
lamproite
lamprophyres
Leucite Hills Lamproite
Magnesium
mineralization
Mineralogy
Minerals
occurrence
plutonic rocks
sanidine
silicates
United States
Wyoming
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Beschreibung
Zusammenfassung:The Leucite Hills feldspars described here have the most Fe-rich, naturally-occurring compositions yet recorded, in which up to 70 mol% of the KAlSi3O8 molecule is replaced by K Fe3+Si3O8.
ISSN:0003-004X
1945-3027
DOI:10.2138/am-1996-1-228