Journal
METEORITICS & PLANETARY SCIENCE
Volume 53, Issue 1, Pages 50-61Publisher
WILEY
DOI: 10.1111/maps.13000
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Funding
- NSF [EAR-0318518, EAR-1322082, DMR-0080065]
- National Nuclear Security Administration under the Stewardship Science Academic Alliances program through DOE Cooperative [DE-NA0001982, DESC0005278]
- NASA [NNX12AJ01G]
- GeoSoilEnviroCARS [NSF-EAR-1128799, DE-FG02-94ER14466]
- Argonne National Laboratory [DE-AC02-06CH11357]
- Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC0205CH11231]
- NASA [NNX12AJ01G, 21547] Funding Source: Federal RePORTER
- Directorate For Geosciences
- Division Of Earth Sciences [1322082] Funding Source: National Science Foundation
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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 (1 sigma) angstrom, c = 2.74 +/- 0.13 angstrom, and a cell volume of 229 +/- 19 angstrom(3) (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 similar to 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.
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