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Santafeite, a re-examination and new empirical formula

Published online by Cambridge University Press:  05 July 2018

Pete J. Dunn  and
Donald R. Peacor
Pete J. Dunn
Affiliation:
Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20560, USA Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA
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Abstract

Santafeite, known only from New Mexico, USA, is re-examined using single-crystal X-ray and microprobe techniques. The new idealized formula, consistent with space group requirements, is

(Mn2+, Fe3+,Al,Mg)8(Mn4+, Mn2+)8 (Ca,Sr,Na)12[(VO4),(AsO4)]16(OH)20 · 8H2O.

Keywords

santafeitevanadatesmanganeseNew Mexico
Type
Mineralogy
Information
Mineralogical Magazine , Volume 50 , Issue 356 , June 1986 , pp. 299 - 300
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1986

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References

Ming-Shan, Sun, and Weber, R.H. (1958) Santafeite, a new hydrated vanadate from New Mexico. Am. Mineral, 43, 677-87.Google Scholar