Some observations on rutherfordine

Trace Elements Investigations 584
By:  and 



The optical properties of rutherfordine, UO2CO3, previously determined on microscopic crystals, have been redetermined on considerably larger crystals; and the relations among the indices of refraction, the morphology, and the crystal structure have been examined. Rutherfordine is orthorhombic, biaxial positive, with α = 1.715, β = 1.730, γ = 1.795, 2V = 53° (calc.); X = b, Y = c (elongation, Z = a. The crystal structure of UO2CO 3 consists of layers of carbonate groups parallel to (010) with linear (O-U-O) ions normal to the layers. The indices β and γ correspond to vibration directions parallel to layers; the unexpectedly large difference in value between β and γ is ascribed to the optical anisotropy of the uranium-oxygen bonding in the layer. Indexed X-ray powder data are given.

Publication type Report
Publication Subtype USGS Numbered Series
Title Some observations on rutherfordine
Series title Trace Elements Investigations
Series number 584
DOI 10.3133/tei584
Year Published 1956
Language English
Publisher U.S. Geological Survey
Description 13 p.
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