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USGS · 70232237

Definitive X-ray powder data for covellite, anilite, djurleite, and chalcocite

Robert W. Potter·Howard T. Evans
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Abstract

By using the Guinier-Hägg focusing X-ray powder camera with Cr Kα 1 and Cu Kα 1 radiations, new powder data for covellite (CuS), anilite (Cu 7 S 4 , djurleite (Cu 1.934 S), and low chalcocite (Cu 2 S) have been obtained from synthetic and natural materials. The powder data were treated by least-squares analysis to obtain the best unit-cell parameters consistent with the data. These powder data are intended to replace inferior and incomplete data previously published and to serve as standards for the study of copper sulflde minerals.

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Robert W. Potter, Howard T. Evans. 1976. Definitive X-ray powder data for covellite, anilite, djurleite, and chalcocite. https://pubs.usgs.gov/publication/70232237

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