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An overlooked fragment of the Santa Catharina ataxite
Author(s) -
Tassel R. Van,
Dillen H.,
Vochten R.,
DeGrave E.,
Hertogen J.
Publication year - 1992
Publication title -
meteoritics
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0026-1114
DOI - 10.1111/j.1945-5100.1992.tb00231.x
Subject(s) - chemistry , meteorite , mass spectrometry , neutron activation analysis , chemical composition , scanning electron microscope , analytical chemistry (journal) , spectroscopy , atomic absorption spectroscopy , mineralogy , crystallography , radiochemistry , environmental chemistry , materials science , astrobiology , chromatography , physics , organic chemistry , quantum mechanics , composite material
— An undocumented mass of 28 kg, recovered from a museum collection, is examined by several methods: optical microscopy, scanning electron microscopy, X‐ray diffraction, Mössbauer spectroscopy and chemical analyses by atomic absorption, energy‐ and wavelength‐dispersive X‐ray spectrometry and, with respect to the trace elements Ir, As, Au, by neutron activation. The structure and the mineralogical chemical composition of the mass identify it as a fragment of the Santa Catharina iron meteorite from Brazil.