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Economic Geology GSW 2008 Users' Group Meeting
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Economic Geology; May 1966; v. 61; no. 3; p. 598-612
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Reflectivity measurements on molybdenite

J. H. Leow

The spectral reflectivity of molybdenite was measured on an unpolished cleavage flake, a polished vertical section, and a polished basal section, both in air and in oil. . . . From these measurements the refractive index and the absorption were calculated. Reflectivity peaks were found at 625 nm in air measurements and at 620 nm in oil measurements. . . . Errors in reflectivity measurements made with a polarizing incident-light microscope were also considered. It was found that incremental (positive) errors are in general much higher than decremental (negative) errors.

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