Title
Liebermannite, Kalsi3o8, A New Shock-metamorphic, High-pressure Mineral From The Zagami Martian Meteorite
Document Type
Article
Publication Date
1-1-2018
Publication Title
Meteoritics and Planetary Science
Publisher
University of Arkansas
Volume
53
Issue
1
First page number:
50
Last page number:
61
Abstract
In this paper, we discuss the occurrence of liebermannite (IMA 2013-128), KAlSi3O8, a new, shock-generated, high-pressure tetragonal hollandite-type structure silicate mineral, in the Zagami basaltic shergottite meteorite. Liebermannite crystallizes in space group I4/m with Z = 2, cell dimensions of a = 9.15 ± 0.14 (1σ) Å, c = 2.74 ± 0.13 Å, and a cell volume of 229 ± 19 Å3 (for the type material), as revealed by synchrotron diffraction. In Zagami, liebermannite likely formed via solid-state transformation of primary igneous K-feldspar during an impact event that achieved pressures of ~20 GPa or more. The mineral name is in honor of Robert C. Liebermann, a high-pressure mineral physicist at Stony Brook University, New York, USA. © The Meteoritical Society, 2017.
Language
English
Repository Citation
Ma, C.,
Tschauner, O.,
Beckett, J. R.,
Rossman, G. R.,
Prescher, C.,
Prakapenka, V. B.,
Bechtel, H. A.,
MacDowell, A.
(2018).
Liebermannite, Kalsi3o8, A New Shock-metamorphic, High-pressure Mineral From The Zagami Martian Meteorite.
Meteoritics and Planetary Science, 53(1),
50-61.
University of Arkansas.
http://dx.doi.org/10.1111/maps.13000