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New data on yukonite

Published online by Cambridge University Press:  10 January 2013

Daphne R. Ross  and
Jeffrey E. Post
Daphne R. Ross
Affiliation:
Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20560
Jeffrey E. Post
Affiliation:
Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20560
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Abstract

A new occurrence of the poorly characterized mineral, yukonite, (Ca6.44K0.13Mg0.23)(Fe14.68Al0.36)(AsO4)9O15.78·25.5H2O, is described. New powder X-ray diffraction and electron microprobe data are provided for type material from Tagish Lake, Yukon Territory, Canada, and that from the new locality, Saalfield, Thuringen, Germany. New chemical formulae are proposed. The strongest reflections are at 14.1(100), 2.79(60), 3.25(57), 5.58(37), 2.61(20), 1.63(20), and 2.24(11) Å.

Type
Research Article
Information
Powder Diffraction , Volume 12 , Issue 2 , June 1997 , pp. 113 - 116
Copyright
Copyright © Cambridge University Press 1997

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References

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