Optical ActivitY in the Orgueil Meteorite

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Science  23 Jul 1965:
Vol. 149, Issue 3682, pp. 443-447
DOI: 10.1126/science.149.3682.443


Nagy's report of an optical rotation of-0.023° to -0.084° in the Orgueil meteorite has not been confirmed. The highest rotation found in several fatty-acid and hydrocarbon fractions isolated from the meteorite was -0.002°, less than that of optically inactive controls. The "rotations" observed by Nagy may have been caused by scattered depolarized light from colloidal particles, reduced instrument sensitivity due to low transmittance of the solutions, or a combination of both.