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Powder Diffraction Data and Unit Cell of Kutnohorite

Published online by Cambridge University Press:  19 May 2016

Laszlo Farkas ,
Beda H. Bolzenius  and
Georg Will
Laszlo Farkas
Affiliation:
Mineralogisches Institut der Universität Bonn, Lehrstuhl für Mineralogie und Kristallographie, D-5300 Bonn, West Germany
Beda H. Bolzenius
Affiliation:
Mineralogisches Institut der Universität Bonn, Lehrstuhl für Mineralogie und Kristallographie, D-5300 Bonn, West Germany
Georg Will
Affiliation:
Mineralogisches Institut der Universität Bonn, Lehrstuhl für Mineralogie und Kristallographie, D-5300 Bonn, West Germany
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Abstract

X-ray powder diffraction data, unit cell parameters and chemical data published previously for kutnohorite, the manganese-rich double carbonate mineral, are critically evaluated and compared with new measurements on a specimen from Chvaletice, Czechoslovakia with a composition Ca (Mn0.64Mg0.23Fe0.13)(CO3)2. Data were collected with a computer controlled diffractometer and analysed with profile analysis techniques. The new powder diffraction data set yields much better data and unit cell parameters than the earlier ones given for kutnohorite on PDF 11-345 (Powder Diffraction File, 1987). A least-squares evaluation resulted in ao = 4.8518(3)Å and co = 16.217(2)Å.

Type
Research Article
Information
Powder Diffraction , Volume 3 , Issue 3 , September 1988 , pp. 172 - 174
Copyright
Copyright © International Centre for Diffraction Data 1988

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