000 02256nam  2200325za 4500
0019.840493
003CaOODSP
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008170727s1968    oncad   ob   f000 0 eng d
040 |aCaOODSP|beng
043 |an-cn---
0861 |aM38-8/62E-PDF|zM38-8/62
1001 |aCabri, Louis J.
24512|aA new copper-iron sulfide |h[electronic resource] / |cL.J. Capri, Mineral Sciences Division.
260 |aOttawa : |bQueen's Printer, |c1968.
300 |ap. 910-925 : |bcharts, ill.
4901 |aReprint series ; |vRS 62
500 |aCover title.
500 |a"Reprinted from Economic Geology, Vol. 62, 1967, pp. 910-925."
500 |aHistorical publication digitized from print 2017 [by Natural Resources Canada].
504 |aIncludes bibliographical references.
5203 |a"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.
69207|2gccst|aMinerals
69207|2gccst|aAnalysis
7101 |aCanada. |bNatural Resources Canada.
7101 |aCanada. |bDepartment of Energy, Mines and Resources.
7101 |aCanada. |bMines Branch.
830#0|aReprint series - Dept. of Energy, Mines and Resources, Mines Branch ;|vRS 62|w(CaOODSP)9.834843
85640|qPDF|s4.62 MB|uhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-62-eng.pdf