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Geerite

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About GeeriteHide

Formula:
Cu8S5
"Extended" formula is Cu+6Cu2+2S5 (Goble, 1985).
Lustre:
Metallic
Hardness:
3½ - 4
Specific Gravity:
5.61 (Calculated)
Crystal System:
Trigonal
Name:
Named by R.J. Goble and George Robinson in 1980 in honor of Adam Geer (30 September 1895 - 1 November 1973, Utica, New York, USA), who collected the original specimens.
May be partly or completely replaced by spionkopite.

Structurally closely related to digenite.

Compare UM1976-15-S:CuSe.


Classification of GeeriteHide

Approved
Approval Year:
1978
First Published:
1980
2.BA.05

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
3.1.7

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

Physical Properties of GeeriteHide

Metallic
Transparency:
Opaque
Hardness:
3½ - 4 on Mohs scale
Hardness:
VHN25=75 - 96 kg/mm2 - Vickers
Density:
5.61 g/cm3 (Calculated)

Optical Data of GeeriteHide

Type:
Anisotropic
Anisotropism:
Moderate in yellows
Colour in reflected light:
Bluish white
Pleochroism:
Weak

Chemical Properties of GeeriteHide

Formula:
Cu8S5

"Extended" formula is Cu+6Cu2+2S5 (Goble, 1985).
Common Impurities:
Fe,Zn

Crystallography of GeeriteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Cell Parameters:
a = 3.83 Å, c = 46.84 Å
Ratio:
a:c = 1 : 12.23
Unit Cell V:
595.04 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Coatings and thin platelets
Comment:
Space group R-3m, R3m or R32. Structure undetermined(?). Goble & Robinson (1980) give cubic space group F4-3m, a = 5.410 Å.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.128 (100)
2.712 (10)
1.918 (50)
1.870 (10)
1.683 (10)
1.637 (30)
1.109 (20)
Comments:
Close to data of sphalerite.

Type Occurrence of GeeriteHide

Place of Conservation of Type Material:
Smithsonian
Geological Setting of Type Material:
Replacement of sphalerite
Associated Minerals at Type Locality:

Synonyms of GeeriteHide

Other Language Names for GeeriteHide

German:Geerit
Simplified Chinese:吉硫铜矿
Spanish:Geerita

Related Minerals - Nickel-Strunz GroupingHide

2.BA.AlburniteAg8GeTe2S4Iso.
2.BA.DzierżanowskiteCaCu2S2Trig. 3m (3 2/m) : P3m1
2.BA.05ChalcociteCu2SMon. 2/m : P21/b
2.BA.05DjurleiteCu31S16Mon. 2/m
2.BA.05RoxbyiteCu9S5Tric. 1 : P1
2.BA.10AniliteCu7S4Orth. mmm (2/m 2/m 2/m) : Pnma
2.BA.10DigeniteCu9S5Trig. 3m (3 2/m) : R3m
2.BA.15BorniteCu5FeS4Orth. mmm (2/m 2/m 2/m) : Pbca
2.BA.20BellidoiteCu2SeTet. 4/m : P42/n
2.BA.20BerzelianiteCu2SeIso. m3m (4/m 3 2/m) : Fm3m
2.BA.25AthabascaiteCu5Se4Orth.
2.BA.25UmangiteCu3Se2Tet.
2.BA.30RickarditeCu7Te5Orth.
2.BA.30WeissiteCu2-xTeHex.
2.BA.35AcanthiteAg2SMon. 2/m : P21/m
2.BA.40MckinstryiteAg5-xCu3+xS4Orth. mmm (2/m 2/m 2/m) : Pnma
2.BA.40StromeyeriteAgCuSOrth. mmm (2/m 2/m 2/m)
2.BA.40dUM2003-13-S:AgAuCuAg6AuCu2S5
2.BA.45JalpaiteAg3CuS2Tet.
2.BA.45SelenojalpaiteAg3CuSe2Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
2.BA.50EucairiteAgCuSeOrth.
2.BA.55AguilariteAg4SeSMon. 2/m
2.BA.55NaumanniteAg2SeOrth. 2 2 2 : P21 21 21
2.BA.60CervelleiteAg4TeSMon. 2/m
2.BA.60HessiteAg2TeMon. 2/m : P21/b
2.BA.60ChenguodaiteAg9Fe3+Te2S4Orth.
2.BA.65Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40 Iso. m3m (4/m 3 2/m) : Fd3c
2.BA.65StütziteAg5-xTe3, x = 0.24-0.36Hex. 6 : P6
2.BA.70ArgyroditeAg8GeS6Orth. mm2 : Pna21
2.BA.70CanfielditeAg8SnS6Orth. mm2
2.BA.70Putzite(Cu4.7Ag3.3)GeS6Iso. 4 3m : F4 3m
2.BA.75FischesseriteAg3AuSe2Iso. 4 3 2 : I41 3 2
2.BA.75Penzhinite(Ag,Cu)4Au(S,Se)4Hex.
2.BA.75PetrovskaiteAuAgSMon.
2.BA.75PetziteAg3AuTe2Iso. 4 3 2 : I41 3 2
2.BA.75UytenbogaardtiteAg3AuS2Trig. 3m (3 2/m) : R3c
2.BA.80Bezsmertnovite(Au,Ag)4Cu(Te,Pb)Orth.
2.BA.80BilibinskitePbCu2Au3Te2Iso.
2.BA.80Bogdanovite(Au,Te,Pb)3(Cu,Fe)Iso.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.1.1ChalcociteCu2SMon. 2/m : P21/b
3.1.2DjurleiteCu31S16Mon. 2/m
3.1.3DigeniteCu9S5Trig. 3m (3 2/m) : R3m
3.1.4AniliteCu7S4Orth. mmm (2/m 2/m 2/m) : Pnma
3.1.5RoxbyiteCu9S5Tric. 1 : P1
3.1.6SpionkopiteCu39S28Trig.
3.1.8CovelliteCuSHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.1.9BerzelianiteCu2SeIso. m3m (4/m 3 2/m) : Fm3m
3.1.10BellidoiteCu2SeTet. 4/m : P42/n
3.1.11UmangiteCu3Se2Tet.
3.1.12YarrowiteCu9S8Trig.
3.1.13AthabascaiteCu5Se4Orth.
3.1.14KlockmanniteCuSeHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.1.15Krut'aiteCuSe2Iso. m3 (2/m 3) : Pa3
3.1.16WeissiteCu2-xTeHex.
3.1.17RickarditeCu7Te5Orth.
3.1.18VulcaniteCuTeOrth.
3.1.19BambollaiteCu(Se,Te)2Tet.
3.1.20LautiteCuAsSOrth. mmm (2/m 2/m 2/m) : Pnma
3.1.21MgriiteCu3AsSe3
3.1.22CubaniteCuFe2S3Orth. mmm (2/m 2/m 2/m)
3.1.23BorniteCu5FeS4Orth. mmm (2/m 2/m 2/m) : Pbca
3.1.24FukuchiliteCu3FeS8Iso. m3 (2/m 3) : Pa3
3.1.25ChalcopyriteCuFeS2Tet. 4 2m : I4 2d
3.1.26MooihoekiteCu9Fe9S16Tet.
3.1.27HaycockiteCu4Fe5S8Orth. 2 2 2
3.1.28IsocubaniteCuFe2S3Iso. m3m (4/m 3 2/m) : Fm3m
3.1.29IdaiteCu5FeS6Hex.
3.1.30NukundamiteCu3.4Fe0.6S4Trig. 3m (3 2/m) : P3m1
3.1.31PutoraniteCu1.1Fe1.2S2Iso.
3.1.32Orickite2CuFeS2 · H2OHex.
3.1.33EskeborniteCuFeSe2Tet.
3.1.34Chaméanite(Cu,Fe)4As(Se,S)4Iso.
3.1.35TalnakhiteCu9(Fe,Ni)8S16Iso. 4 3m : I4 3m

Other InformationHide

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 GeeriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Goble, R.J., Robinson, G. (1980) Geerite, Cu1.60S, a new copper sulfide from Dekalb Township, New York. Canadian Mineralogist: 18: 519–523.
Fleischer, M., Cabri, L.J. (1981) New mineral names. American Mineralogist: 66: 1274-1280.
Economou, M.I. (1981) A second occurrence of the copper sulfides geerite and spionkopite in Eretria area, central Greece. Neues Jahrbuch für Mineralogie - Monatshefte: 489–494.
Goble, R.J. (1985) The relationship between crystal structure, bonding and cell dimensions in the copper sulfides. Canadian Mineralogist: 23: 61–76.
Whiteside, L.S., Goble, R.J. (1986) Structural and compositional changes in copper sulfides during leaching and dissolution. The Canadian Mineralogist: 24: 247-258.

Internet Links for GeeriteHide

Localities for GeeriteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Atlantic Ocean
 
  • Mid-Atlantic Ridge complex
    • Ashadze hydrothermal area
Firstova, A., Stepanova, T., Cherkashov, G., Goncharov, A., & Babaeva, S. (2016). Composition and formation of gabbro-peridotite hosted seafloor massive sulfide deposits from the Ashadze-1 hydrothermal field, Mid-Atlantic Ridge. Minerals, 6(1), 19.
Gablina, I.F., Semkova, T.A., Stepanova, T.V., and Gor'kova, N.V. (2006): Lithology and Mineral Resources 41(1), 27-44.
Australia
 
  • Queensland
    • Cloncurry Shire
      • Cloncurry
Laurie J. Lawrence, Vera Munro-Smith, Anthony R. Ramsden, James L. Sharpe & Peter A. Williams (1999) Geology and Mineralogy of the Lorena Gold Mine, Cloncurry District, North-west Queensland. Journal and Proceedings of The Royal Society of New South Wales 132:29-35; Vera Munro-Smith (2006) Cobalt Mineralisation in Selected Australian Deposits. PhD thesis, University of Western Sydney.
    • Mount Isa City Shire
      • Gunpowder District
        • Mount Gordon
Richardson, S.M. and Day, A.D. (1997) Geology of the Esperanza copper deposit. Proceedings of the 3rd International Mining Geology Conference, Launceston. pg. 51-56
  • Victoria
    • Swan Hill Rural City
      • Lake Boga
  • Western Australia
    • East Pilbara Shire
      • Rudall River District
Ogilvie, A. L. (2014). Textural and LA-ICP-MS trace element chemistry analysis of pyrite and chalcopyrite from Telfer Au-Cu deposit, WA: implications for a multi-source ore system (Honors thesis).
Austria
 
  • Styria
    • Knittelfeld
      • Flatschach
Raith, J. G., Leitner, T., & Paar, W. H. (2015). Orogenic-type copper-gold-arsenic-(bismuth) mineralization at Flatschach (Eastern Alps), Austria. Mineralogy and Petrology, 109(5), 531-553.
Canada
 
  • Nunavut
    • Little Cornwallis Island
Mathieu, J., Turner, E. C., Kontak, D. J., Fayek, M., & Mathur, R. (2018). Atypical Cu mineralisation in the Cornwallis carbonate-hosted Zn district: Storm copper deposit, Arctic Canada. Ore Geology Reviews, 99, 86-115.
  • Québec
    • Bas-Saint-Laurent
      • Témiscouata RCM
        • Lac Témiscouata
Mineralium Deposita 44 (2009) 285-301
China
 
  • Fujian
    • Longyan
      • Shanghang Co.
        • Zijinshan ore field
Huang, H., Wang, S., & Chi, C. (2014). Identification of the complete Cu–S series minerals from the Zijinshan Cu–Au deposit, Fujian Province. Geol. J. China Univ., 20, 50-57.
  • Tibet
    • Ngari
      • Gêrzê Co. (Gaize Co.)
        • Duolong ore field
YANG, C., TANG, J., WANG, Y., YANG, H., WANG, Q., DING, S. and FANG, X. (2014), Minerals, Alteration and Fluid Basic Researchonthe First High Sulfidation Epithermal-Porphyry Cu (Au) Deposit (Southern Tiegelong Deposit) in Tibet, China. Acta Geologica Sinica, 88: 817–819.
Czech Republic
 
  • Plzeň Region
    • Klatovy District
      • Sušice
Litochleb J., Sejkora J., Šrein V., Malec J.: Kašperskohorské zlato (Šumava, Česká republika). Bulletin Mineralogicko-petrografického oddělení Národního muzea v Praze, 2009, roč. 17, č. 1, s. 1-13.
DR Congo
 
  • Lualaba
    • Kolwezi mining district
      • Kolwezi
Canadian Mineralogist 46,19-31(2008)
Germany
 
  • Baden-Württemberg
    • Freiburg
      • Ortenaukreis
        • Wolfach
          • Oberwolfach
            • Rankach valley
Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German)
  • North Rhine-Westphalia
    • Bergisches Land
      • Eckenhagen
        • Tillkausen
Weiss: "Mineralfundstellen, Deutschland West", 1990
Greece
 
  • Central Greece
    • Euboea
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
India
 
  • Madhya Pradesh
    • Balaghat District
      • Baihar Tehsil
        • Padritola
Sikka, D. B., Petruk, W., Nehru, C. E., & Zhang, Z. (1991). Geochemistry of secondary copper minerals from Proterozoic porphyry copper deposit, Malanjkhand, India. Ore Geology Reviews, 6(2-3), 257-290.
Indian Ocean
 
  • Central Indian Ridge
    • MESO Mineral zone
Lalou, C., Münch, U., Halbach, P., & Reyss, J. L. (1998). Radiochronological investigation of hydrothermal deposits from the MESO zone, Central Indian Ridge. Marine Geology, 149(1-4), 243-254.
Iran
 
  • Kurdistan
    • Qandil range
Mirza, T. A., & Rashid, S. G. (2018). Mineralogy, Fluid inclusions and stable isotopes study constraints on genesis of sulfide ore mineral, Qaladiza area Qandil Series, Iraqi Kurdistan Region. Arabian Journal of Geosciences, 11(7), 146.
  • Yazd
    • Ardakan County
      • Ardakan (Ardekan)
http://www.fos.ut.ac.ir/~journal/G.80.1E_2.htm; Shekarifard, A., Rahimpour, B. H., & Rouh, S. J. (2004) Alteration of sulfide minerals in the Ardakan barite-chalcopyrite ore deposits. Iranian Journal of Crystallography and Mineralogy. Vol. 12, No. 2, 1383/2004 Fall & Winter
Italy
 
  • Trentino-Alto Adige
    • Trento Province (Trentino)
      • Valsugana
        • Vignola-Falesina
Paolo Gasparetto, Erica Bittarello, Andrea Canal, Lara Casagrande, Marco E. Ciriotti, Bruno Fassina, Paolo Ferretti, Sergio Pegoraro, Fabio Tosato, Paolo Zammatteo (2014): I lavori minerari del Rio Ricet, Vignola, Falesina, Trento. Micro, 12, 50-123.
  • Veneto
    • Vicenza Province
      • Torrebelvicino
        • Mercanti Valley
Pegoraro S., Orlandi P., Chiereghin P., Contin.A. and Toniolo E. (2009): I minerali del Monte Trisa, Torrebelvicino, Vicenza. Rivista Mineralogica Italiana, No. 3, 160-179
Japan
 
  • Shizuoka
    • Shimoda City
      • Rendaiji
Matsubara, S. & Miyawaki, R. (2006) Catalogue of Japanese Minerals (National Science Museum)
Kazakhstan
 
  • Karaganda Region
    • Zhanaarka
Pavlova, Z. N.; Nuralin, N. N.; Bakarasov, E. V.; Bakarasov, V. E. (1997): Mineralogy of the Shaman-​Aibat (Kazakhstan) cupriferous sandstone-​type copper ore deposit. Geologiya Kazakhstana 1997 (1), 65-74 (in Russian).
Mongolia
 
  • Selenge Aimag
    • Baruun-Haraa
Khishgee, C., & Akasaka, M. (2015). Mineralogy of the Boroo Gold Deposit in the North Khentei Gold Belt, Central Northern Mongolia. Resource Geology, 65(4), 311-327.
    • Mandal Soum
Khishgee, C., Akasaka, M., Ohira, H., & Sereenen, J. (2014) Gold Mineralization of the Gatsuurt Deposit in the North Khentei Gold Belt, Central Northern Mongolia. Resource Geology, 64(1), 1-16.
Papua New Guinea
 
  • Central Province
    • Astrolabe mineral field
Noku, S.K., Espi, J.O., Matsueda, H. (2012) Magmatic contributions to the mineralization of the Laloki and Federal Flag strata-bound massive sulfide deposits, Papua New Guinea: Sulfur isotope evidence. Paper presented at PNG Research, Science and Technology Conference, Pacific Adventist University, Port Moresby, Papua New Guinea.
Poland
 
  • Lower Silesian Voivodeship
    • Głogów Co.
Jadwiga PIECZONKA, Adam PIESTRZYŃSKI, Jacek MUCHA, Adam GŁUSZEK, Maciej KOTARBA, Dariusz WIĘCŁAW (2008): The red-bed-type precious metal deposit in the Sieroszowice-Polkowice copper mining district, SW Poland. Annales Societatis Geologorum Poloniae 78, 151-280.
Oszczepalski, S., & Chmielewski, A. (2017). Mineralizacja kruszcowa w odkrywczym otworze Sieroszowice S-1 w œwietle nowych badań. Przegląd Geologiczny, 65(5).
    • Kłodzko Co.
      • Gmina Nowa Ruda
        • Przygórze
Łukasz Kruszewski PXRD & EPMA data (2018).
    • Lubin Co.
Kucha H. 2007: Mineralogia kruszcowa i geochemia ciała rudnego złoża Lubin-Sieroszowice. Biuletyn PIG, vol. 423, pp. 77-94
Russia
 
  • Chelyabinsk Oblast
Zaykov, V. V., Melekestseva, I. Y., Zaykova, E. V., Kotlyarov, V. A., & Kraynev, Y. D. (2017). Gold and platinum group minerals in placers of the South Urals: Composition, microinclusions of ore minerals and primary sources. Ore Geology Reviews, 85, 299-320.
  • Tuva
Palyanova, G. A., Murzin, V. V., Zhuravkova, T. V., & Varlamov, D. A. (2018). Au-Cu-Ag mineralization in rodingites and nephritoids of the Agardag ultramafic massif (southern Tuva, Russia). Russian Geology and Geophysics, 59(3), 238-256.
Saudi Arabia
 
  • Mintaqah Al Qasim
Bakhsh, R. A. (2018). Microanalysis and genesis of Cu-Ag minerals in metadiabase dykes at the Jabal Zalm area, Saudi Arabia. Ore Geology Reviews, 95, 713-724.
Bakhsh, R.A. (2018): Microanalysis and genesis of Cu-Ag minerals in metadiabase dykes at the Jabal Zalm area, Saudi Arabia. Ore Geology Reviews 95, 713-724.
Spain
 
  • Catalonia
    • Lleida (Lérida)
      • El Pallars Jussà
        • La Vall Fosca
          • La Torre de Cabdella (La Torre de Capdella)
            • Castell-estaó
- Castillo,M.,Torró,L.,Campeny,M.,Villanova,C.,Tauler,E.,Melgarejo,J.C.(2009) "Mineralogía del Depósito de Uranio Eureka (Castell-estaó, Pirineo, Cataluña) " Soc. Esp. de Mineralogía, Revista Macla nº 11 pp. 53-54. Madrid.
Switzerland
 
  • Grisons
    • Vorderrhein Valley
      • Tujetsch (Tavetsch)
        • Curnera Valley
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 109.
UK
 
  • England
    • Warwickshire
      • Nuneaton and Bedworth
UKJMM 26:43-51
  • Wales
    • Powys
      • Old Radnor
        • Wethel
Cotterell TF et al (2011) The mineralogy of Dolyhir quarry, Old Radnor. Powys, Wales. UKJMM 32:5-61
USA
 
  • Arizona
    • Greenlee Co.
      • Shannon Mts
        • Copper Mountain District (Clifton-Morenci District)
Merritt Stephen Enders (2000) The Evolution of Supergene Enrichment in the Morenci Porphyry Copper Deposit, Greenlee County, Arizona. PhD Thesis, University of Arizona
  • Nevada
    • Lander Co.
      • Battle Mountain District
Moore-Roth, M. N. (2012). Supergene enrichment profile at copper basin Battle Mountain, Nevada (Doctoral dissertation, New Mexico Institute of Mining and Technology).
  • New Mexico
    • Sierra Co.
      • Chloride District
        • Chloride
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
      • Sierra Cuchillo (Cuchillo Negro Mts)
In the collection of Brent Thorne. Acquired from e-Shop minerals.
  • New York
    • St. Lawrence Co.
      • De Kalb Township
Canadian Mineralogist Vol. 18, pp. 519-523 (1980)
Zambia
 
  • North-Western Province
    • Solwezi
Jacobs, T. T. (2016). Process mineralogical characterisation of the Kansanshi copper ore, NW Zambia (Masters thesis, University of Cape Town).
Mineral and/or Locality  
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