00000nam 2200000za 4500 9.840493 CaOODSP 20221107151845 cr ||||||||||| 170727s1968 oncad ob f000 0 eng d CaOODSP eng n-cn--- M38-8/62E-PDF M38-8/62 Cabri, Louis J. A new copper-iron sulfide [electronic resource] / L.J. Capri, Mineral Sciences Division. Ottawa : Queen's Printer, 1968. p. 910-925 : charts, ill. Reprint series ; RS 62 Cover title. "Reprinted from Economic Geology, Vol. 62, 1967, pp. 910-925." Historical publication digitized from print 2017 [by Natural Resources Canada]. Includes bibliographical references. "A copper-iron sulfide mineral from Noril'sk, Western Siberia, discovered and described as cubic chalcopyrite by Bud'ko and Kulagov, is shown to be a discrete mineral entity and not to be confused with cubic chalcopyrite. The term cubic chalcopyrite does, in fact, refer to a valid phase, which is the face-centered cubic high-temperature polymorph of chalcopyrite. The new sulfide mineral tarnishes very rapidly in air, changing from the chalcopyrite color to hues of pink and brown, and eventually becoming iridescent. High-temperature X-ray diffraction, D.T.A., and quench experiments indicate that on heating to about 80° C the mineral breaks down to "tetragonal" cubanite and minor bornite. On slow cooling the original mineral is reformed. Since this new mineral closely resembles the qualitative descriptions for chalcopyrrhotite in the literature, attempts to find it in specimens from the type chalcopyrrhotite locality were made, but none was found"--Abstract, p. 910. gccst Minerals gccst Analysis Canada. Natural Resources Canada. Canada. Department of Energy, Mines and Resources. Canada. Mines Branch. Reprint series - Dept. of Energy, Mines and Resources, Mines Branch ; RS 62 (CaOODSP)9.834843 PDF 4.62 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-62-eng.pdf 300141