Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published August 2016 | Published
Journal Article Open

Discovery of new Al-Cu-Fe minerals in the Khatyrka CV3 meteorite

Abstract

Introduction: During a nanomineralogy investigation of the Khatyrka CV3 carbonaceous chondrite, we have identified two new alloy minerals (AlCu with a Pm-3m CsCl structure and Al_3Fe with a C2/m structure) and associated icosahedrite (quasicrystal Al_(63)Cu_(26)Fe_(11) with a five-fold symmetry) at micron scales in section 126A of USNM 7908. The section belongs to the larger Grain 126, which is one of the fragments recovered from an expedition to the Koryak Mountains in far eastern Russia in 2011 [1] as a result of a search for samples that would provide information on the origin of the quasicrystal mineral icosahedrite [2,3,4]. The recovered fragments have meteoritic (CV3-like) oxygen isotopic compositions and are identified collectively as coming from the Khatyrka meteorite [5], which formed 4.5 billion years ago during the earliest stages of the solar system. Khatyrka is unique, so far being the only meteorite to host metallic Al component.

Additional Information

© 2016 Wiley. First published: 20 July 2016.

Attached Files

Published - Ma_2016p293.pdf

Files

Ma_2016p293.pdf
Files (607.5 kB)
Name Size Download all
md5:155d3901d3996530c024ba4519d8d8da
607.5 kB Preview Download

Additional details

Created:
August 20, 2023
Modified:
October 23, 2023