Possible spinel absorption bands in S-asteroid visible reflectance spectra

Details Possible spinel absorption bands in S-asteroid visible reflectance spectra Possible spinel absorption bands in S-asteroid visible reflectance spectra

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994lpi....25..553h&link_type=abstract

In Lunar and Planetary Inst., The Twenty-Fifth Lunar and Planetary Science Conference. Part 2: H-O p 553-554 (SEE N94-36136 11-9

Computer Science

Absorption Spectra, Asteroids, Chromites, Spectral Reflectance, Spinel, Achondrites, Chemical Composition

Scientific paper

Minor absorption bands in the 0.55 to 0.7 micron wavelength range of reflectance spectra of 10 S asteroids have been found and compared with those of spinel-group minerals using the modified Gaussian model. Most of these S asteroids are consistently shown to have two absorption bands around 0.6 and 0.67 micron. Of the spinel-group minerals examined in this study, the 0.6 and 0.67 micron bands are most consistent with those seen in chromite. Recently, the existence of spinels has also been detected from the absorption-band features around 1 and 2 micron of two S-asteroid reflectance spectra, and chromite has been found in a primitive achondrite as its major phase. These new findings suggest a possible common existence of spinel-group minerals in the solar system.

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