Liebermannite, Kalsi3o8, A New Shock-metamorphic, High-pressure Mineral From The Zagami Martian Meteorite
Meteoritics and Planetary Science
University of Arkansas
First page number:
Last page number:
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.
Beckett, J. R.,
Rossman, G. R.,
Prakapenka, V. B.,
Bechtel, H. A.,
Liebermannite, Kalsi3o8, A New Shock-metamorphic, High-pressure Mineral From The Zagami Martian Meteorite.
Meteoritics and Planetary Science, 53(1),
University of Arkansas.