The redefinition of gunterite, Na4Ca[V10O28]·20H2O-Reference-Cited by-同舟云学术

The redefinition of gunterite, Na4Ca[V10O28]·20H2O

Published:2022-02-24 Issue:2 Volume:60 Page:361-368
ISSN:1499-1276
Container-title:The Canadian Mineralogist
language:en
Short-container-title:

Author:

Kampf Anthony R.¹,Cooper Mark A.²,Hawthorne Frank C.²,Hughes John M.³,Nash Barbara P.⁴,Adams Paul M.¹

Affiliation:

1. Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, USA

2. Department of Earth Sciences, University of Manitoba, 125 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada

3. Department of Geology, University of Vermont, 180 Colchester Ave., Burlington, Vermont 05405, USA

4. Department of Geology and Geophysics, University of Utah, 115 S 1460 E, Salt Lake City, Utah 84112, USA

Abstract

ABSTRACT Gunterite was originally assigned the ideal formula Na4[H2V10O28]·22H2O. More detailed bond-valence analysis brought into question the presence of a protonated decavanadate anion, which led to the reexamination of the mineral. Infrared spectroscopy confirmed the absence of NH4. Reinterpretation of the original crystal structure data and new electron-probe microanalyses support the redefinition of gunterite as having the ideal formula Na4Ca[V10O28]·20H2O. This redefinition has been approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association.

Publisher

Mineralogical Association of Canada

Subject

Geochemistry and Petrology

Link

https://pubs.geoscienceworld.org/canmin/article-pdf/60/2/361/5579508/i1499-1276-60-2-361.pdf

Reference7 articles.

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3. Gagné, O.C. & Hawthorne,F.C. (2015) Comprehensive derivation of bond-valence parameters for ion pairs involving oxygen. Acta CrystallographicaB71, 562– 578.

4. Kampf, A.R., Hughes, J.M., Marty, J., & Nash,B. (2011) Gunterite, Na4(H2O)16(H2V10O28)·6H2O, a new mineral with a doubly–protonated decavanadate polyanion: Crystal structure and descriptive mineralogy. Canadian Mineralogist49, 1243– 1251.

5. Kampf, A.R., Hughes, J.M., Cooper, M.A., Hawthorne, F.C., Nash, B.P., Olds, T.A., Adams, P.M., & Marty,J. (2021) The pascoite family of minerals, including the redefinition of rakovanite. Canadian Mineralogist59, 771– 779.

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