Crystal-field spectra of fassaite from the Angra dos Reis meteorite |
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Authors: | HK Mao PM Bell D Virgo |
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Institution: | Geophysical Laboratory, Carnegie Institution of Washington, Washington, D.C. 20008 USA |
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Abstract: | Fassaitic pyroxene from the Angra dos Reis meteorite has striking spectral properties. The57Fe Mössbauer spectra show no Fe3&+;, and thus the absorption is thought to originate from a complex charge-transfer process. Intense absorption at 480 nm dominates the spectrum of the meteorite and may be important in the interpretation of telescope spectra of objects in space. |
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