Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-26T17:53:00.451Z Has data issue: false hasContentIssue false

On the new mineral theophrastite, a nickel hydroxide, from Unst, Shetland, Scotland

Published online by Cambridge University Press:  05 July 2018

A. Livingstone
Affiliation:
Department of Geology, Royal Scottish Museum, Chambers Street, Edinburgh, Scotland
D. L. Bish
Affiliation:
Los Alamos Scientific Laboratory, PO Box 1663, Mail Stop 978, Los Alamos, New Mexico, USA

Abstract

The new mineral theophrastite, Ni(OH)2, from Unst, is Mg-bearing and occurs associated with a very poorly crystalline Ni-containing mixed hydroxide of the pyroaurite type and/or zaratite on chromitite. X-ray powder diffraction data show a shift in d spacing toward brucite compared with pure Ni(OH)2. Infrared, thermal, chemical, optical, and physical data are presented together with indexed powder data for fifteen lines ranging from d 4.66Å to 0.90Å. The solid-solution series brucite-theophrastite is briefly discussed.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bish, D. L., and Livingstone, A. (1981 Mineral. Mag. 44, 339–43.CrossRefGoogle Scholar
Heddle, M. F. (1901 The Mineralogy of Scotland. 2 vols. Edinburgh.Google Scholar
Isaacs, T. (1963 Mineral. Mag. 33, 663–78 [MA 16-541].Google Scholar
Macpherson, H. G., and Livingstone, A. (1974 Mineral. Mag. 39, 718–20 [MA 74-3414].CrossRefGoogle Scholar
Marcopoulos, T., and Economou, M. (1981 Am. Mineral. 66, 1020–1.Google Scholar
Mumpton, F. A., Jaffe, H. W., and Thompson, C. S. (1965 Am. Mineral. 50, 1893–913.[MA 17605].Google Scholar
Natta, G., and Passerini, L. (1928 Gazz. Chim. Ital. 58, 597618.Google Scholar
Pastor-Rodriguez, J., and Taylor, H. F. W. (1971 Mineral. Maz3. 38, 286–94 [MA 71-2700].CrossRefGoogle Scholar
Williams, K. L. (1960 Am. Mineral. 45, 110910.[MA 15-238].Google Scholar