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Ganomalite from Franklin, New Jersey, and Jakobsberg, Sweden: new chemical and crystallographic data
Published online by Cambridge University Press: 05 July 2018
Abstract
Chemical analyses for ganomalite from Franklin, New Jersey, and Jakobsberg, Nordmark, Sweden, imply that Mn is an essential element and that the formula is Pb9Ca5MnSi9O33, with Z = 1 for the hexagonal unit cell. Preliminary crystal structure data confirm that Mn and Ca are ordered, as implied by the chemical analyses. Ganomalite is hexagonal, space group P3, with a = 9.82 and c = 10.13 Å. Occurrences of samples from both localities are described, together with analytical data for macedonite from Jakobsberg.
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- Copyright © The Mineralogical Society of Great Britain and Ireland 1985
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Present address: Department of Geology and Geophysics, University of Wisconsin, Madison, Wisconsin 53706.
Present address: Thomas Road, Rindge, New Hampshire 03461.
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