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GEOREF RECORD

Al,Si distribution in a ternary (Ba,K,Na)-feldspar as determined by crystal structure refinement

Krishnamoorthy Viswanathan and Hedwig-Maria Kielhorn
Al,Si distribution in a ternary (Ba,K,Na)-feldspar as determined by crystal structure refinement
American Mineralogist (February 1983) 68 (1-2): 122-124

Abstract

Disordered Al,Si distribution, with 0.437 Al in the T (sub 1) site and 0.268 Al in the T (sub 2) site. The state of maximum order for a natural (Ba,K)-feldspar with a Cn (celsian) content of 40 mol% corresponds to a disordered Al/Si distribution. Comparison with the structural data of a Ba-poor feldspar indicates that the disorder shown by such maximum ordered (Ba,K)-feldspars increases with their Cn content.--Modified journal abstract.


ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 68
Serial Issue: 1-2
Title: Al,Si distribution in a ternary (Ba,K,Na)-feldspar as determined by crystal structure refinement
Affiliation: Tech. Univ., Mineral.-Petrogr. Inst., Braunschweig, Federal Republic of Germany
Pages: 122-124
Published: 198302
Text Language: English
Publisher: Mineralogical Society of America, Washington, DC, United States
References: 4
Accession Number: 1983-034751
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: 5 tables
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 1983
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