SEM, optical, and Moessbauer studies of submicrometer chromite in AllendeNew scanning electron and optical microscope results are presented showing that sub-micrometer chromite is abundant along healed cracks and grain boundaries in Allende chondrule olivine. Some wider healed cracks also contain pentlandite and euhedral Ni3Fe grains. Also reported are Moessbauer measurements on Allende HF-HCl residues confirming a high Fe(+++)/Fe(++) ratio.
Document ID
19820048211
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Housley, R. M. (Rockwell International Science Center Thousand Oaks, CA, United States)