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GEOREF RECORD
Crystal structure of andremeyerite, BaFe(Fe,Mn,Mg)Si (sub 2) O (sub 7)
Elio Cannillo, Fiorenzo Mazzi and Giuseppe Rossi
Crystal structure of andremeyerite, BaFe(Fe,Mn,Mg)Si (sub 2) O (sub 7)
American Mineralogist (June 1988) 73 (5-6): 608-612
Crystal structure of andremeyerite, BaFe(Fe,Mn,Mg)Si (sub 2) O (sub 7)
American Mineralogist (June 1988) 73 (5-6): 608-612
Index Terms/Descriptors
Abstract
The sorosilicate andremeyerite (monoclinic pseudo-orthorhombic, a 7.488, b 13.785, c 7.085 Angstrom, beta 118.23 degrees , space group P2 (sub 1) /c) always shows multiple (100) twinning. The crystal structure was determined by Patterson and Fourier syntheses and refined by least-squares cycles with isotropic and anisotropic T factors. The final R values for 1430 observed reflections were 0.10 and 0.04 (0.06 for all the 1883 measured reflections), respectively, before and after the correction of the structure amplitudes for twinning.
ISSN: 0003-004X
EISSN: 1945-3027
Coden: AMMIAY
Serial Title: American Mineralogist
Serial Volume: 73
Serial Issue: 5-6
Title: Crystal structure of andremeyerite, BaFe(Fe,Mn,Mg)Si (sub 2) O (sub 7)
Affiliation: Univ. Pavia, Dip. Sci. Terra,
Pavia,
Italy
Pages: 608-612
Published: 198806
Text Language: English
Publisher: Mineralogical Society of America,
Washington, DC,
United States
References: 11
Accession Number: 1988-048656
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 6 tables
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1988
