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Germanite

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Formula:
Cu13Fe2Ge2S16
System:
Isometric
Colour:
Pale greyish-pink
Lustre:
Metallic, Dull
Hardness:
4
Name:
In allusion to the germanium content.
This page provides mineralogical data about Germanite.

Classification of Germanite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
2.CB.30

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.
2.9.4.2

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
6.2.1

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
2 : Sulphogermanates
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First Recorded Occurrence of Germanite

Year of Discovery:
1922
Geological Setting of First Recorded Material:
Primary hydrothermal ores
Associated Minerals at First Recorded Locality:

Physical Properties of Germanite

Metallic, Dull
Diaphaneity (Transparency):
Opaque
Colour:
Pale greyish-pink
Comment:
Tarnishes dark brown
Streak:
Dark gray to black
Hardness (Mohs):
4
Tenacity:
Brittle
Density:
4.46 - 4.59 g/cm3 (Measured)    4.30 g/cm3 (Calculated)

Crystallography of Germanite

Crystal System:
Isometric
Class (H-M):
4 3m - Hextetrahedral
Space Group:
P4 3n
Cell Parameters:
a = 10.585Å
Unit Cell Volume:
V 1,185.97 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Minute cubic crystals, massive, intergrown with renierite.

Optical Data of Germanite

Type:
Isotropic
Colour in reflected light:
Pinkish gray

Chemical Properties of Germanite

Formula:
Cu13Fe2Ge2S16
Essential elements:
All elements listed in formula:
Common Impurities:
Ga,Zn,Mo,As,V

Relationship of Germanite to other Species

2.CB.05aColoradoiteHgTe
2.CB.05aHawleyiteCdS
2.CB.05aMetacinnabarHgS
2.CB.05cPolhemusite(Zn,Hg)S
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4
2.CB.05aSphaleriteZnS
2.CB.05aStilleiteZnSe
2.CB.05aTiemanniteHgSe
2.CB.05UM1998-15-S:CuFeZnCu2Fe3Zn5S10
2.CB.05aRudashevskyite(Fe,Zn)S
2.CB.10aChalcopyriteCuFeS2
2.CB.10aEskeborniteCuFeSe2
2.CB.10aGalliteCuGaS2
2.CB.10bHaycockiteCu4Fe5S8
2.CB.10aLenaiteAgFeS2
2.CB.10bMooihoekiteCu9Fe9S16
2.CB.10bPutoraniteCu9(Fe,Ni)9S16
2.CB.10aRoquesiteCuInS2
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16
2.CB.10aLaforêtiteAgInS2
2.CB.15aČernýiteCu2(Cd,Zn,Fe)SnS4
2.CB.15aFerrokësteriteCu2(Fe,Zn)SnS4
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4
2.CB.15aIdaiteCu5FeS6
2.CB.15aKësteriteCu2(Zn,Fe)SnS4
2.CB.15aKuramiteCu3SnS4
2.CB.15bMohiteCu2SnS3
2.CB.15aPirquitasiteAg2ZnSnS4
2.CB.15aStanniteCu2(Fe,Zn)SnS4
2.CB.15cStannoiditeCu6+Cu22+(Fe2+,Zn)3Sn2S12
2.CB.15aVelikiteCu2HgSnS4
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.20ChatkaliteCu6FeSn2S8
2.CB.20MawsoniteCu6Fe2SnS8
2.CB.30ColusiteCu26V2(As,Sn,Sb)6S32
2.CB.30GermanocolusiteCu26V2(Ge,As)6S32
2.CB.30NekrasoviteCu26V2(Sn,As,Sb)6S32
2.CB.30StibiocolusiteCu13V4(Sb,Sn,As)3S16
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32
2.CB.30MaikainiteCu20(Fe,Cu)6Mo2Ge6S32
2.CB.35aHemusiteCu6SnMoS8
2.CB.35aKiddcreekiteCu6SnWS8
2.CB.35aPolkovicite(Fe,Pb)3(Ge,Fe)1-xS4
2.CB.35aRenierite(Cu,Zn)11(Ge,As)2Fe4S16
2.CB.35aVincienniteCu7+Cu32+Fe22+Fe23+Sn(As,Sb)S16
2.CB.35aMorozeviczite(Pb,Fe)3Ge1-xS4
2.CB.35bCatamarcaiteCu6GeWS8
2.CB.40LautiteCuAsS
2.CB.45CadmoseliteCdSe
2.CB.45GreenockiteCdS
2.CB.45Wurtzite(Zn,Fe)S
2.CB.45RambergiteMnS
2.CB.45Buseckite(Fe,Zn,Mn)S
2.CB.55aCubaniteCuFe2S3
2.CB.55bIsocubaniteCuFe2S3
2.CB.60PicotpauliteTlFe2S3
2.CB.60RaguiniteTlFeS2
2.CB.65ArgentopyriteAgFe2S3
2.CB.65SternbergiteAgFe2S3
2.CB.70SulvaniteCu3VS4
2.CB.75VulcaniteCuTe
2.CB.80EmpressiteAgTe
2.CB.85MuthmanniteAuAgTe2
6.2.2BriartiteCu2(Fe,Zn)GeS4
6.2.3Renierite(Cu,Zn)11(Ge,As)2Fe4S16
6.2.4ArgyroditeAg8GeS6
6.2.5CanfielditeAg8SnS6
6.2.6Morozeviczite(Pb,Fe)3Ge1-xS4
6.2.7Polkovicite(Fe,Pb)3(Ge,Fe)1-xS4

Other Names for Germanite

Name in Other Languages:
German:Germanit
Simplified Chinese:硫锗铜矿
Spanish:Germanita
Traditional Chinese:硫鍺銅礦

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 Germanite

Reference List:
Pufahl (1922) Met. Erz: 19: 324.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 385-386.

American Mineralogist (1984): 69: 943-947.

American Mineralogist (1989): 74: 951.

Internet Links for Germanite

Specimens:
The following Germanite specimens are currently listed for sale on minfind.com.

Localities for Germanite

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
 
  • Catamarca
    • Andalgalá Department
Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica 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.
Armenia
 
  • Syunik' Province
Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
    • Kafan District (Kapan)
Mederer, J., Moritz, R., Zohrabyan, S., Vardanyan, A., Melkonyan, R., & Ulianov, A. (2014). Base and precious metal mineralization in Middle Jurassic rocks of the Lesser Caucasus: A review of geology and metallogeny and new data from the Kapan, Alaverdi and Mehmana districts. Ore Geology Reviews, 58, 185-207.
Bulgaria
 
  • Pazardzhik Oblast (Pazardjik Oblast)
    • Panagyurishte (Panagurishte) Obshtina
      • Levski
Handbook of Mineralogy; Bogdanov, K., Tsonev, D., & Popov, K. (2004). Mineral Assemblages And Genesis Of The Cu-Au Epithermal Deposits In The Southern Part Of The Panaguyrishte Ore District, Bulgaria. Bulletin of the Geological Society of Greece, 36:406-415
Canada
 
  • Nova Scotia
    • Inverness Co.
      • Meat Cove
The Nova Scotia Mineral Occurrence Database (MODB)
Cuba
 
Handbook of Mineralogy
Democratic Republic of Congo (Zaïre)
 
  • Katanga (Shaba)
    • Kipushi
Kamona, A.F., Lévêque, J., Friedrich, G., and Haack, U. (1999): Mineralium Deposita 34, 273-283.; Kampunzu, A.B., Cailteux, J.L.H., Kamona, A.F., Intiomale, M.M., and Melcher, F. (2009): Ore Geology Reviews 35, 263-297.; Chabu, M. (1995). The Geochemistry Of Phlogopite And Chlorite From The Kipushi Zn-Pb--Gu Deposit, Shaba, Zaire., Canadian Mineralogist 33, 547-558.
Finland
 
  • Western and Inner Finland Region
    • Orivesi
      • Eräjärvi area
Sandström, F. & Lahti, S.I. (2009): Viitaniemipegmatiten i Eräjärvi, Orivesi, Finland. Litiofilen 26 (1): 11-38
France
 
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Guillaumes
R. Pierrot, P. Picot, J. Feraud, J. Vernet : "Inventaire Minéralogique de la France, N° 4, Alpes Maritimes", BRGM, 1974
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Lavrion (Laurion; Laurium)
No reference listed
Japan
 
  • Honshu Island
    • Chubu Region
      • Gifu Prefecture
        • Hida City
Geology and Mineral Resources of Japan, p 204 (Geological Survey of Japan, 1960)
    • Tohoku Region
      • Akita Prefecture
        • Odate
Dr. Hidemichi Hori (vol. 2)
      • Aomori Prefecture
Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Metall und Erz, Halle,(1922) 19, 324-325; Rocks & Min.: 62:440.
Cairncross, B. (1997) The Otavi Mountain Land Cu-Pb-Zn-V Deposits, Namibia. Mineralogical Record 28(2) pg 124 Table 7;
  • Otjozondjupa Region
    • Otavi
Kampunzu, A.B., Cailteux, J.L.H., Kamona, A.F., Intiomale, M.M., and Melcher, F. (2009): Ore Geology Reviews 35, 263-297.
Republic of Congo (Brazzaville)
 
  • Bouenza Department
    • Boko Songho District
Handbook of Mineralogy
Russia
 
  • Eastern-Siberian Region
    • Transbaikalia (Zabaykalye)
      • Chitinskaya Oblast'
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Magnitogorsk
Belogub, E.V., Novoselov, K.A., Yakovleva, V.A., and Spiro, B. (2008): Ore Geology Reviews 33, 239-254.
        • Verkhneural'sk District
          • Mezhozerny settlement
Amplieva, E.E. (2008): Geology of Ore Deposits 50(5), 404-422.
Spain
 
  • Castile and Leon
    • Ávila
      • El Losar del Barco
Joaquim Mollfulleda (1996): Minerales, descripción y clasificación. Ed. Omega. p. 92
USA
 
  • Alaska
    • Northwest Arctic Borough
      • Shungnak District
        • Ruby Creek Prospect
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
  • Colorado
    • Boulder Co.
      • Jamestown District
Minerals of Colorado (1997) Eckels, E. B.
Minerals of Colorado (1997) E.B. Eckels
Mineral and/or Locality  
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