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Crystallographic images processing (CIP) and high-resolution transmission electron microscopy (HRTEM) studies of bannisterite; a 2:1 type modulated layer silicate

Embaie A. Ferrow and Sven Hovmoeller
Crystallographic images processing (CIP) and high-resolution transmission electron microscopy (HRTEM) studies of bannisterite; a 2:1 type modulated layer silicate
European Journal of Mineralogy (February 1993) 5 (1): 181-188

Abstract

Two-dimensional CIP was performed on a HRTEM image of bannisterite from Broken Hill, Australia. Bannisterite is monoclinic and crystallizes in space group A2/a with a 2.29, b 1.64, c 2.46 nm, beta 94.36 degrees . Using digitized HRTEM images processed on a personal computer, crystallographic data were extracted from calculated Fourier transforms and processed to give an improved density map of the HRTEM image of bannisterite. Gross features as well as details such as pinching and swelling of the sinusoidal octahedral sheet, overlapping regular and inverted tetrahedra, and the column of large interlayer cations were easily discerned.


ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 5
Serial Issue: 1
Title: Crystallographic images processing (CIP) and high-resolution transmission electron microscopy (HRTEM) studies of bannisterite; a 2:1 type modulated layer silicate
Affiliation: Lund University, Department of Mineralogy and Petrology, Institute of Geology, Lund, Sweden
Pages: 181-188
Published: 199302
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 16
Accession Number: 1993-003547
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
Secondary Affiliation: Stockholm University, SWE, Sweden
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1993
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