The laboratory spectrum published in Fig. 3 of A. L. Sprague and T. L. Roush (1998, Icarus 133, 174-183) is a mixture of magnetite and hematite (∼34-45% magnetite, ∼55-66% hematite) rather than magnetite or hematite (M. D. Lane 2000, Icarus 143, 000-000) alone. Because of the unusual nature of this
✦ LIBER ✦
Comparison of Laboratory Emission Spectra with Mercury Telescopic Data
✍ Scribed by A.L. Sprague; T.L. Roush
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 359 KB
- Volume
- 133
- Category
- Article
- ISSN
- 0019-1035
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The magnetite spectrum in Fig. 3 of A. L. Sprague and T. L. Roush (1998, Icarus 133, 174-183) is of hematite, not magnetite. Regardless, magnetite has no diagnostic fundamental or transparency bands within the spectral range of their Mercury telescopic data; therefore, they should not conclude the a