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rickardite

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Journal Article
Published: 01 June 1949
American Mineralogist (1949) 34 (5-6): 441–451.
...S. A. Forman; M. A. Peacock Abstract Rickardite and the identical artificial compound Cu 4-x Te 2 have the C 38-type (Cu 2 Sb) of structure. Tetragonal, P4/nmm; a =3.97, c = 6.11 kX; 2Cu in ( a ): 000,½½0 (2—x)Cu in ( c ): 0½z 1 , ½0 z 1 with z 1 , = 0.27 + 0.01; 2Te in ( c ) :0½z 2 , ½O z 2...
Journal Article
Published: 01 July 1930
American Mineralogist (1930) 15 (7): 272–273.
...Wm. P. Crawford Abstract Rickardite was first discovered in the Good Hope mine, Vulcan, Colorado, by Dr. Loui Weiss in 1902. The mineral was associated with native tellurium and gold and silver tellurides. Qualitative tests made by A. B. Sanford proved it to be a telluride of copper and the mineral...
Journal Article
Journal: Economic Geology
Published: 01 November 2007
Economic Geology (2007) 102 (7): 1269–1294.
..., altaite, native tellurium, stützite, cuprian cervelleite, and an unnamed Cu-bearing precious metal sulfotelluride [(Ag,Au,Cu) 9 Te 2 S 3 ] characterize the early substage, whereas melonite, rickardite, vulcanite, weissite, and native tellurium are present in the middle substage. The late substage...
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Series: Economic Geology Monograph Series
Published: 01 January 1990
DOI: 10.5382/Mono.07.27
EISBN: 9781629490021
... (AuCuTe 4 ), coloradoite (HgTe), rickardite (Cu 3 Te 2 ), weissite (Cu 2 Te), an unnamed telluride mineral (Ag 1 . 9 Te) which appears to be the γphase of Kiukkola aud Wagner (1957), Cabri (1965), and Kracek et al. (1966), and a possibly new telluride miueral (composition close to (Ag,Fe)Te 3 with Ag/Fe...
Journal Article
Published: 01 April 1961
American Mineralogist (1961) 46 (3-4_Part_1): 258–268.
... are in close agreement with those found for synthetic CuTe by Anderko and Schubert. The probable space group is Pmnm . Twinning and intergrowths in rickardite associated with vulcanite are described briefly. A second telluride, also apparently new, is briefly described pending further investigation. 25 03...
Journal Article
Published: 01 August 1942
American Mineralogist (1942) 27 (8): 592.
.... This is quite satisfactory for native tellurium, gold and silver tellurides, but the color reaction is obscured or fails when dealing with goldfieldite (Cu 6 Sb 2 (S,Te) 9 ), tellurite, durdenite, and emmonsite. I have not had the opportunity of trying its efficacy on the copper tellurides, rickardite...
Journal Article
Published: 01 June 2014
The Canadian Mineralogist (2014) 52 (3): 423–432.
... distance in cameronite of 2.4440(3) Å ( i.e. , M4−Te18) is indeed much shorter than the 2.604(1) Å and 2.63(1) Å observed in vulcanite (CuTe, Pertlik 2001 ) and in the average structure of rickardite (Cu 3–x Te 2 , Schutte & de Boer 1993 ), respectively. A similar behavior is observable for the Cu–Cu...
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Journal Article
Published: 01 June 2013
Mineralogical Magazine (2013) 77 (4): 475–483.
... in relation to other copper tellurides and pure metals. * E-mail: luca.bindi@unifi.it 23 4 2013 5 5 2013 © 2013 The Mineralogical Society 2013 weissite vulcanite rickardite tellurides Val Graveglia Italy W eissite , Cu 2– x Te, is a rare mineral first described...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 September 2010
Economic Geology (2010) 105 (6): 1097–1111.
... Mineral Hessite (n = 17) 8 Altaite (n = 17) 9 Melonite (n = 12) 10 Weissite (n = 5) 11 Rickardite (n = 5) 12 Galena (n = 30) 13 Greenockite (n = 3) 14 Pyrargirite (n = 2) 15 Native gold (n = 5) 16 Native silver (n = 5) 17 wt % Ag 58.89–62.40 0.02–3.12 0.00 0.08...
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Journal Article
Published: 23 June 2015
The Canadian Mineralogist (2015) 53 (1): 159–168.
... 2014 ) is indeed much shorter than those observed in vulcanite, CuTe (2.60–2.64 Å; Pertlik 2001 ) and in the average structure of rickardite, Cu 3 – x Te 2 (2.64–2.67 Å; Schutte & de Boer 1993 ). A similar situation is observed for the Cu–Cu and Te–Te distances in cameronite ( Bindi...
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Journal Article
Published: 01 October 2000
The Canadian Mineralogist (2000) 38 (5): 1125–1136.
... inclusions of silver- or copper-rich tellurides, possibly hessite [Ag 2 Te], empressite [Ag 2− x Te 1+ x ], weissite [Cu 2− x Te], rickardite [Cu 7 Te 5 ], or other Te-minerals. At Cirotan, rhodonite without “adularia” also precipitated later, after rhodochrosite, and displays a comb to drusy growth...
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Journal Article
Journal: Economic Geology
Published: 01 July 2002
Economic Geology (2002) 97 (4): 787–800.
... hypogene mineral, with secondary cervantite and stibiconite. Other ore minerals present include scheelite, aurostibite, sphalerite, arsenopyrite, calaverite, and rickardite ( Gifford, 1990 ). The Blue Spec quartz reefs also contain significant carbonate minerals, including calcite, magnesite, and siderite...
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Journal Article
Published: 07 August 2023
Geological Magazine (2023) 160 (7): 1345–1375.
...-bearing species in chalcedonic veinlets, which consist of native Te crystals, tellurite, coloradoite, tetradymite, tellurobismutite, petzite, sylvanite and frohbergite. The Vulcan-Good Hope system is the type locality for the relatively rare Cu tellurides (rickardite, weissite, cameronite, spirodonite...
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Journal Article
Journal: Economic Geology
Published: 01 June 2005
Economic Geology (2005) 100 (4): 707–732.
...) . The latter corresponds exactly to the average composition obtained here. The mineral is described in association with copper mineralization in a peridotite, with native copper and rickardite (Cu 7 Te 5 ), and occurs as a rimlike overgrowth on the Cu telluride. According to Rudnitskiy (1956 , reference given...
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Series: EMU Notes in Mineralogy series
Published: 01 January 2017
DOI: 10.1180/EMU-notes.19.1
EISBN: 9780903056601
... sulfides, tellurides, and sulfosalts including bornite ( Buseck and Cowley, 1983 ), pyrrhotite ( Li and Franzen, 1996 ), calaverite ( e.g. Caracas and Gonze, 2001 ), sylvanite ( Krutzen and Inglesfield, 1990 ), rickardite ( Schutte and de Boer, 1993 ), muthmannite ( Bindi, 2008 ), proustite ( Subramanian...
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Series: Society of Economic Geologists
Published: 01 January 2017
DOI: 10.5382/Rev.19.06
EISBN: 9781629491172
... and chalcopyrite replacing the earlier formed minerals ( Denis, 1933 ; Price, 1933 , 1934 ). Gold occurred as native gold and tellurides ( Stobart, 1932 ; Denis, 1933 ; Cabri, 1965 ). Trace minerals recognized include altaite, calaverite, galena, petzite, hessite, krennerite, molybdenite, rickardite, sylvanite...
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