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Cervelleite

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Formula:
Ag4TeS
System:
Isometric
Colour:
dark grey, black
Hardness:
2
A Cu-rich variety (up to 6 wt.% Cu) has been reported (Helmy, 1999; see also Voudouris et al., 2011).

Classification of Cervelleite

Approved 1986
2.BA.60

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
B : Metal Sulfides, M: S > 1: 1 (mainly 2: 1)
A : With Cu, Ag, Au
3.2.8

3 : Sulphides, Selenides, Tellurides, Arsenides and Bismuthides (except the arsenides, antimonides and bismuthides of Cu, Ag and Au, which are included in Section 1)
2 : Sulphides etc. of Ag
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First Recorded Occurrence of Cervelleite

Year of Discovery:
1986

Physical Properties of Cervelleite

Metallic
Colour:
dark grey, black
Hardness (Mohs):
2
Cleavage:
None Observed

Crystallography of Cervelleite

Crystal System:
Isometric
Cell Parameters:
a = 14.03Å
Unit Cell Volume:
V 2,761.68 ų (Calculated from Unit Cell)

Chemical Properties of Cervelleite

Formula:
Ag4TeS
Essential elements:
All elements listed in formula:

Relationship of Cervelleite to other Species

2.BA.05ChalcociteCu2S
2.BA.05DjurleiteCu31S16
2.BA.05GeeriteCu8S5
2.BA.05RoxbyiteCu9S5
2.BA.10AniliteCu7S4
2.BA.10DigeniteCu9S5
2.BA.15BorniteCu5FeS4
2.BA.20BellidoiteCu2Se
2.BA.20BerzelianiteCu2Se
2.BA.25AthabascaiteCu5Se4
2.BA.25UmangiteCu3Se2
2.BA.30RickarditeCu7Te5
2.BA.30WeissiteCu2-xTe
2.BA.35AcanthiteAg2S
2.BA.40MckinstryiteAg5-xCu3+xS4
2.BA.40StromeyeriteAgCuS
2.BA.40dUM2003-13-S:AgAuCuAg6AuCu2S5
2.BA.45JalpaiteAg3CuS2
2.BA.45SelenojalpaiteAg3CuSe2
2.BA.50EucairiteAgCuSe
2.BA.55AguilariteAg4SeS
2.BA.55NaumanniteAg2Se
2.BA.60HessiteAg2Te
2.BA.60ChenguodaiteAg9Fe3+Te2S4
2.BA.65Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40
2.BA.65StütziteAg5-xTe3, x = 0.24-0.36
2.BA.70ArgyroditeAg8GeS6
2.BA.70CanfielditeAg8SnS6
2.BA.70Putzite(Cu4.7Ag3.3)GeS6
2.BA.75FischesseriteAg3AuSe2
2.BA.75Penzhinite(Ag,Cu)4Au(S,Se)4
2.BA.75PetrovskaiteAuAg(S,Se)
2.BA.75PetziteAg3AuTe2
2.BA.75UytenbogaardtiteAg3AuS2
2.BA.80Bezsmertnovite(Au,Ag)4Cu(Te,Pb)
2.BA.80BilibinskitePbCu2Au3Te2
2.BA.80Bogdanovite(Au,Te,Pb)3(Cu,Fe)
3.2.1AcanthiteAg2S
3.2.3NaumanniteAg2Se
3.2.4AguilariteAg4SeS
3.2.5HessiteAg2Te
3.2.6EmpressiteAgTe
3.2.7StütziteAg5-xTe3, x = 0.24-0.36
3.2.9DervilliteAg2AsS2
3.2.10StromeyeriteAgCuS
3.2.11MckinstryiteAg5-xCu3+xS4
3.2.12JalpaiteAg3CuS2
3.2.13EucairiteAgCuSe
3.2.14CameroniteCu5-x(Cu,Ag)3+xTe10 (x = 0.43)
3.2.15Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40
3.2.16SternbergiteAgFe2S3
3.2.17ArgentopyriteAgFe2S3
3.2.18Geffroyite(Cu,Fe,Ag)9(Se,S)8
3.2.19ArgentopentlanditeAg(Fe,Ni)8S8

Other Names for Cervelleite

Name in Other Languages:
German:Cervelleit
Simplified Chinese:硫碲银矿
Spanish:Cervelleita

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Cervelleite

Reference List:
A. J. Criddle, J. E. Chisholm & C. J. Stanley (1989): Cervelleite, Ag4TeS, a new mineral from the Bambolla mine, Mexico, and a description of a photo-chemical reaction involving cervelleite, acanthite and hessite. European Journal of Mineralogy: 1: 371-380.

American Mineralogist: 75: 1431.

Helmy, H. M. (1999): The Um Samiuki volcanogenic Zn-Cu-Pb-Ag deposit, Eastern Desert, Egypt: a possible new occurrence of cervelleite. Canadian Mineralogist 37, 143-154.

Panagiotis Christos Voudouris, Paul G. Spry, Gregory Aarne Sakellaris und Constantinos Mavrogonatos (2011): A cervelleite-like mineral and other Ag-Cu-Te-S minerals [Ag2CuTeS and (Ag,Cu)2TeS] in gold-bearing veins in metamorphic rocks of the Cycladic Blueschist Unit, Kallianou, Evia Island, Greece. Mineralogy and Petrology, 101, 169-183.

Internet Links for Cervelleite

Localities for Cervelleite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Argentina
 
  • Chubut
    • Gastre Department
Brodtkorb (2002): Las Especies Minerales de la Republica Argentina; DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.
Topa, D., Makovicky, E., Paar, W., Brodtkorb, M. (2004): The crystal structure of Angelaite, Cu2AgPbBiS4, a new mineral species from Angela mine, Province of Chubut, Argentina. 32nd IGC - Florence, 2004.; BRODTKORB, M.K. de y PAAR, W.. Angelaite in the paragenesis of Los Manantiales district, Chubut, Argentina: a new mineral species. Rev. Asoc. Geol. Argent. [online]. 2004, vol.59, n.4, pp. 787-78; Dan Topa, Werner H. Paar, Hubert Putz, Georg Zagler, Milka K. de Brodtkorb, Chris J. Stanley, Andrew C. Roberts, and Emil Makovicky (2010) Mineralogical data on angelaite, Cu 2 AgPbBiS 4 , from the Los Manantiales district, Chubut, Argentina. The Canadian Mineralogist (February 2010), 48(1):139-144 ; Paar, W. H., Putz, H., Topa, D., de Brodtkorb, M. K., & Sureda, R. J. (2005, January). Occurrence and paragenesis of tellurium in mineral deposits of Argentina. In Mineral Deposit Research: Meeting the Global Challenge (pp. 1419-1422). Springer Berlin Heidelberg.
  • Mendoza
Ana Cecilia Mugas-Lobos, María Florencia Márquez-Zavalía, Miguel Ángel Galliski (2011) Selenium and precious metal-bearing minerals at Don Sixto mining project, Mendoza, Argentina. SGA2011_0062.pdf
  • Río Negro
    • Valcheta Departement
      • San Martin Pluton
Paar, et al. (1996): 3 Reunión de Mineralogía y Metalogenia, Inst. de Recursos Minerales. UNLP Publication 5:1-7, La Plata; DE BRODTKORB, Milka K. Precious metaltellurides and other Te-bearing minerals in different paragenesis of Argentina: A review. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 365-372.; GOZALVEZ, Martín Ricardo. Characterizationof San Martín pluton and associated tungsten deposits, Valcheta Department, Río Negro Province. Rev. Asoc. Geol. Argent. [online]. 2009, vol.64, n.3, pp. 409-425.; Paar, W. H., Putz, H., Topa, D., de Brodtkorb, M. K., & Sureda, R. J. (2005, January). Occurrence and paragenesis of tellurium in mineral deposits of Argentina. In Mineral Deposit Research: Meeting the Global Challenge (pp. 1419-1422). Springer Berlin Heidelberg.
Bulgaria
 
  • Kardzhali Oblast (Kurdzhali; Kărdžali; Kurdjali)
    • Ardino Obshtina
http://www.bgd.bg/summanual_2002_5.htm; Dobrev, S., Strashimirov, S., Vassileva, M., & Dragiev, H. (2002). Silver and silver-bearing phases from Chala and Pcheloiad deposits (Eastern Rhodopes) and Eniovche deposit (Central Rhodopes). Univ Mining and Geology “St. Ivan Rilski” Annual, 1-6.
China
 
  • Anhui Province
    • Chuzhou Prefecture
      • Langya District
Weining Zhou (1994): Mineral Resources and Geology 8(4), 233-244; Li, Y. and Qing, C.K. (1999): Acta Mineralogica Sinica 19, 426–435
  • Jiangsu Province
    • Nanjing Prefecture
      • Qixia District
Weining Zhou (1994): Mineral Resources and Geology 8(4), 233-244; Jinghong Cai (2007): Mineral Resources and Geology 21(2), 196-199
  • Liaoning Province (Manchuria; Dongbei Region)
    • Huludao Prefecture
      • Jianchang Co.
Weining Zhou (1994): Mineral Resources and Geology 8(4), 233-244; Li, Y. and Qing, C.K. (1999): Acta Mineralogica Sinica 19, 426–435
  • Qinghai Province
    • Haixi Autonomous Prefecture
      • Da Qaidam Co. (Dachaidan Co.)
        • Xitieshan
Weining Zhou (1994): Mineral Resources and Geology 8(4), 233-244
  • Shandong Province
    • Jiaodong Peninsula (Jiaodong Gold Province)
      • Yantai Prefecture
        • Zhaoyuan Co.
Xiang-Ping Gu, Makoto Watanabe, Kenichi Hoshino, and Yasuhiro Shibata (2003): European Journal of Mineralogy 15(1), 147-155.
Egypt
 
  • Red Sea Governorate
    • Eastern Desert
      • Um Samiuki
Canadian Mineralogist Feb. 1999; Ibrahim M. Shalaby, Eugen Stumpfl, Hassan M. Helmy, Mahmoud M. El Mahallawi and Omar A. Kamel (2004) Silver and silver-bearing minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt. Mineralium Deposita Volume 39, Numbers 5-6, 608-621
Finland
 
  • Northern Finland Region
    • Suomussalmi
Chernet, Tegist 1994. Ore mineralogy of the Moukkari gold prospect. Geologian Tutkimuskeskus, arkistoraportti M/19/451/-94/42.
Greece
 
  • Aegean Islands Department (Aiyaíon)
    • Kykládes Prefecture
      • Cyclade Islands (Cyclades; Kikladhes; Nomos Kikladhon)
        • Tinos Island
Econ. Geol. 102 (2007) 1269-1294.
  • Sterea Hellas Department
    • Évvoia Prefecture
      • Évvia Island (Euboea; Évvoia)
Panagiotis Christos Voudouris, Paul G. Spry, Gregory Aarne Sakellaris und Constantinos Mavrogonatos (2011): A cervelleite-like mineral and other Ag-Cu-Te-S minerals [Ag2CuTeS and (Ag,Cu)2TeS] in gold-bearing veins in metamorphic rocks of the Cycladic Blueschist Unit, Kallianou, Evia Island, Greece. Mineralogy and Petrology, 101, 169-183.
Greenland
 
  • Sermersooq
    • Arsuk Fjord
      • Ivittuut (Ivigtut)
Karup-Møller, Sven A. and Hans Pauly (1979). Galena and associated ore minerals from the cryolite at Ivigtut, South Greenland. Meddelelser om Grønland. Greenland Geoscience 2, l-25.
Japan
 
  • Honshu Island
    • Chubu Region
      • Shizuoka Prefecture
        • Shimoda City
          • Rendaiji
Shimizu et al. (1994) Sanko-Gakkai Kou'en-Youshi, 30.; Int Geol Congr (2008) Oslo. MRD-09
Mexico
 
  • Sonora
    • Mun. de Moctezuma
      • Moctezuma
Eur.J.Min.(1989) 1, 371-380
Lapis 2001(1), 11-40; Bonev, I. K., Petrunov, R., Cook, N. J., & Ciobanu, C. L. (2005). Kostovite and its argentian varieties: Deposits and mineral associations. Geochem. Mineral. Petrol.(Bulg. Acad. Sci.), 42, 1-22.
Romania
 
  • Alba Co.
Tamas, C. G.; Bailly, L.; Ghergari, L.; O'Connor, G.; Minut, A. (2006): New occurrences of tellurides and argyrodite in Rosia Montana, Apuseni mountains, Romania, and their metallogenic significance. Canadian Mineralogist 44, 367-383.
  • Bihor Co.
    • Nucet
www.minerals-of-the carpathians.eu (2009); Cook, N. J., Ciobanu, C. L., Spry, P. G., & Voudouris, P. (2009). Understanding gold-(silver)-telluride-(selenide) mineral deposits. Episodes, 32(4), 249.
  • Caraş-Severin Co.
    • Banat Mts
      • Ocna de Fier-Dognecea District
http://minerals-of-the-carpathians.eu; Cook, N. J., Ciobanu, C. L., Spry, P. G., & Voudouris, P. (2009). Understanding gold-(silver)-telluride-(selenide) mineral deposits. Episodes, 32(4), 249.
  • Hunedoara Co.
    • Stanija (Sztanizsa)
Cook, N. J., Ciobanu, C. L., Spry, P. G., & Voudouris, P. (2009). Understanding gold-(silver)-telluride-(selenide) mineral deposits. Episodes, 32(4), 249.
Russia
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Bodaibo
          • Lena Gold District
            • Kropotkinsky ore cluster
http://www.igem.ru/igem/chem/pt/sukhloge.htm
    • Transbaikalia (Zabaykalye)
      • Chitinskaya Oblast'
Kovalenker, V. A., Kiseleva, G. D., Krylova, T. L., & Andreeva, O. V. (2011). Mineralogy and ore formation conditions of the Bugdaya Au-bearing W-Mo porphyry deposit, eastern Transbaikal region, Russia. Geology of Ore Deposits, 53(2), 93-125.
  • Northern Region
    • Karelia Republic
      • Ladoga Region
Ivashchenko, V. I., Valkama, M., Sundblad, K., Golubev, A. I., & Alekseev, V. Y. (2011, September). New data on mineralogy and metallogeny of scarns in the Pitkyaranta ore region. In Doklady Earth Sciences (Vol. 440, No. 1, pp. 1307-1311). SP MAIK Nauka/Interperiodica
Slovakia
 
  • Prešov Region
    • Prešov Co.
Duda et. all.,1981:Minerály severnej časti Slanských vrchov. Min.Slovca,Monografia 2,Bratislava, 98 p
Sweden
 
  • Värmland
    • Grums
      • Värmskog
Nysten, C. Malmmineralogisk undersökning av Pb-, Zn-, Cu- och Ag-förande kvartsgångar i Värmskogsområdet, mellersta Värmland. Uppsala universitet, Institutionen för geovetenskaper. Examensarbete NV3, Berggrundsgeologi, 30 hp. nr 254. 107p.
Switzerland
 
  • Grischun (Grisons; Graubünden)
    • Vorderrhein Valley
      • Tujetsch (Tavetsch)
        • Curnera Valley
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 103.
USA
 
  • Arizona
    • Cochise Co.
      • Tombstone Hills
        • Tombstone District
EDS confirmed by Bob Housley.
  • California
    • San Bernardino Co.
      • Baker
EDS confirmed by Bob Housley.
  • Colorado
    • Boulder Co.
      • Ward District
Minerals of Colorado (1997) Eckels, E. B.
  • Montana
    • Madison Co.
      • Norwegian District (Whitehall District)
Mineralogical Magazine 1996 60 : 871-876
Uzbekistan
 
  • Tashkent Viloyati (Toshkent)
    • Angren Region
      • Chatkal-Kuraminskii Range
Rustam Koneev, Evgeniy Ignatikov, Arpay Turesebekov, Umid Aripov, Rustam Khalmatov, Obidjon Kodirov, Miraziz Usmanov (2005) Gold ore deposits of Uzbekistan: Geochemistry and nanomineralogy of tellurium and selenium. IGCP Project 486, 2005 Field Workshop, Kiten, Bulgaria, 14-19 September 2005
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