• Hapkeite - Wikipedia

    en.wikipedia.org/wiki/Hapkeite Hapkeite is a mineral discovered in the Dhofar 280 meteorite found in 2000 in Oman on the Arabian peninsula. The meteorite is believed to originate from the Moon; specifically, it appears to be a fragment of lunar highland breccia. Hapkeite's composition is of silicon and iron, ...
  • Hapkeite: Mineral information, data and localities.

    www.mindat.org/min-26419.html Named by M. Anand, L.A. Taylor, M.A. Nazarov, J. Shu, H.K. Mao, and R.J. Hemley in 2003 Bruce William Hapke (b. 17 February 1931), planetary geologist and Professor at the University of Pittsburgh, Pennsylvania, USA, who first predicted the presence of vapor-deposited elemental iron as coatings on lunar soil grains.
  • Hapkeite Mineral Data

    webmineral.com/data/Hapkeite.shtml Hapkeite. Comments: Reflected-light image of an area in the regolith clast showing distribution of FeNi metal and hapkeite (Fe2Si) metal grains in a feldspathic matrix, Msk, Maskelynite..(Proc. Nat. Acad. Sci.,101:6848). Location: Dhofar 280 (Dh-280) is a lunar fragmental breccia meteorite found in the Dhofar region of Oman, in April, 2001.Scale: See Image.
  • Hapkeite: Properties and Occurrences - Assignment Point

    www.assignmentpoint.com/science/.../hapkeite-properties-and-occurrences.html Hapkeite is a mineral discovered in the Dhofar 280 meteorite found in 2000 in Oman on the Arabian peninsula. The meteorite is believed to originate from the Moon; specifically, it appears to be a fragment of lunar highland breccia. Due to its 1:2 composition of silicon-iron, hapkeite was given the chemical formula Fe 2 Si. It is a meteoric mineral composed of silicon and iron.
  • What does hapkeite mean? - definitions.net

    www.definitions.net/definition/hapkeite Definition of hapkeite in the Definitions.net dictionary. Meaning of hapkeite. What does hapkeite mean? Information and translations of hapkeite in the most comprehensive dictionary definitions resource on the web.
  • PSRD:: Discovery of hapkeite

    www.psrd.hawaii.edu/July04/newMineral.html Naming the new Fe 2 Si mineral hapkeite seemed fitting to Larry Taylor and his colleagues as they consider it to be a direct product of impact-induced vapor-phase deposition in the lunar regolith. Hapkeite is the third iron silicide identified in this lunar meteorite. The other two minerals remain to be formerly named, FeSi and FeSi 2.
  • Trigonal and cubic Fe2Si polymorphs (hapkeite) in the ...

    www.hou.usra.edu/meetings/lpsc2019/eposter/1520.pdf Hapkeite was found also in a 7gm Supernova graphite (ORId3m-18) from the Orgueil meteorite [22]. The trigonal hapkeite polymorph — the most stable among the silicides (up to 255 GPa) — in conjunction with xifengite (Fe Si ) gupeiite (Fe Si), and inclusions of cubic SiC (moissanite) and (Ti,V,Fe)C (khambraevite) superpure crystals, was
  • Space weathering on airless planetary bodies: Clues from ...

    www.pnas.org/content/101/18/6847 This mineral, hapkeite, is named after Bruce Hapke of the University of Pittsburgh, who predicted the presence and importance of vapor-deposited coatings on lunar soil grains some 30 years ago. We propose that this mineral and other Fe-Si phases are probably more common in the lunar regolith than previously thought and are directly related to ...
  • 2Si (HAPKEITE) FROM THE SUBSOIL IN THE ALPINE FORLAND ...

    www.impact-structures.com/wp-content/uploads/2013/07/Poster-hapkeite1.pdf Fe2Si (HAPKEITE) FROM THE SUBSOIL IN THE ALPINE FORLAND (SOUTHEAST GERMANY): IS IT ASSOCIATED WITH AN IMPACT? Frank Bauer Oxford Instruments GmbH Nano- Science, Wiesbaden Germany, frank.bauer@oxinst.com Michael Hiltl Carl Zeiss Microscopy GmbH, Oberkochen,
  • Space weathering on airless planetary bodies: Clues from ...

    www.ncbi.nlm.nih.gov/pmc/articles/PMC406430 We predict that the Fe-Si phases are more prevalent in lunar soils than originally thought. Discovery of the mineral hapkeite, and other associated Fe-Si phases in Dhofar 280, highlights the importance of space-weathering processes operating on airless bodies, such as the Moon, and their significance in unraveling spectral reflectance data.