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Name: Chalcocite RRUFF ID: R120113 Ideal Chemistry: Cu2S Locality: Tsumeb, Namibia Source: Rob Lavinsky [view label] Owner: RRUFF Description: Black, twinned, elongated blades, associated with calcite. This is low chalcocite Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
Quick search: [ All Chalcocite samples (5) ] |
CHEMISTRY | ||||||||||
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RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R120113.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 15.221(2)Å b: 11.891(2)Å c: 13.497(2)Å alpha: 90° beta: 116.206(7)° gamma: 90° Volume: 2191.7(5)Å3 Crystal System: monoclinic |
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REFERENCES for Chalcocite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
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Hill J (1751) Of vitriolic minerals, in A History of the Materia Medica Longman, Hitch and Hawes London 140-147 [view file] |
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Hoffmann C A S (1789) Mineralsystem des Herrn Inspektor Werners mit dessen Erlaubnis herausgegeben von C A S Hoffmann, Bergmannisches Journal, 1, 369-398 [view file] |
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Beudant F S (1832) Chalkosine, cuivre sulfuré, in Traité Élémentaire de Minéralogie, 2nd Edition Paris 408-410 [view file] |
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Roseboom E H (1966) An investigation of the system Cu-S and some natural copper sulfides between 25° and 700° C, Economic Geology, 61, 641-672 |
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Evans H T (1971) Crystal structure of low chalcocite, Nature Physical Science, 232, 69-70 |
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Cook W R (1972) Phase changes in Cu2S as a function of temperature, National Bureau of Standards Special Publication 364, Solid State Chemistry, 364, 703-712 [view file] |
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Mathieu H J, Rickert H (1972) Elektrochemisch-thermodynamische Untersuchungen am System Kupfer-Schwefel bei Temperaturen T = 15-90°C, Zeitschrift für Physikalische Chemie Neue Folge, 79, 315-330 |
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Potter R W II (1977) An electrochemical investigation of the system copper-sulfur, Economic Geology, 72, 1524-1542 |
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Tatsuka K, Morimoto N (1977) Tetrahedrite stability relations in the Cu-Fe-Sb-S system, American Mineralogist, 62, 1101-1109 [view file] |
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Evans H T (1979) Djurleite (Cu1.94S) and low chalcocite (Cu2S): New crystal structure studies, Science, 203, 356-358 |
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Evans H T (1979) The crystal structures of low chalcocite and djurleite, Zeitschrift für Kristallographie, 150, 299-320 [view file] |
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Steger H F, Desjardins L E (1980) Oxidation of sulfide minerals. V. Galena, sphalerite and chalcocite, The Canadian Mineralogist, 18, 365-372 [view file] |
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Evans H T (1981) Copper coordination in low chalcocite djurleite and other copper-rich sulfides, American Mineralogist, 66, 807-818 [view file] |
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Whiteside L S, Goble R J (1986) Structural and compositional changes in copper sulfides during leaching and dissolution, The Canadian Mineralogist, 24, 247-258 [view file] |
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Pósfai M, Buseck P R (1994) Djurleite, digenite, and chalcocite: Intergrowths and transformations, American Mineralogist, 79, 308-315 [view file] |
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Ondru P, Veselovský F, Gabaová A, Hlouek J, rein V, Vavrín I, Skála R, Sejkora J, Drábek M (2003) Primary minerals of the Jáchymov ore district, Journal of the Czech Geological Society, 48, 19-147 [view file] |
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Goh S W, Buckley A N, Lamb R N, Rosenberg R A, Moran D (2006) The oxidation states of copper and iron in mineral sulfides, and the oxides formed on initial exposure of chalcopyrite and bornite to air, Geochimica et Cosmochimica Acta, 70, 2210-2228 |
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Schumer B N, Stegen R J, Barton M D, Hiskey M D, Downs R T (2019) Mineralogical profile of supergene sulfide ore in the Western Copper area, Morenci mine, Arizona, The Canadian Mineralogist, 57, 391-401 |
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