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Krennerite

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Cresson Mine, Eclipse Gulch, Cripple Creek District, Teller Co., Colorado, USA
© Brent Thorne 2008

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Formula:
(Au,Ag)Te
 
2
System:OrthorhombicColour:Silver white
Hardness:2 - 3
Name:
In honor of the Hungarian mineralogist, Joseph A. Krenner (1839-1920).
This page provides mineralogical data about Krennerite.

Classification of Krennerite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:2/D.16-30
Nickel-Strunz 10th (pending) edition ID:2.EA.15

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
A : M:S = 1:2 - With Cu, Ag, Au
Dana 8th edition ID:2.12.13.1

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
Hey's CIM Ref.:3.3.2

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

Type Locality:Sacarîmb (Sãcãrâmb; Szekerembe; Nagyág), Hunedoara Co., Romania
Year of Discovery:1877

Occurrences of Krennerite

Geological Setting:Hydrothermal veins with tellurium.

Physical Properties of Krennerite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Silver white
Hardness (Mohs):2 - 3
Hardness (Vickers):VHN100=166 - 186 kg/mm2
Cleavage:Perfect
on {001}
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):8.62 g/cm3
Density (calculated):8.86 g/cm3

Crystallography of Krennerite

Crystal System:Orthorhombic
Class (H-M):mm2 - Pyramidal
Space Group:Pma2
Cell Parameters:a = 16.58Å, b = 8.849Å, c = 4.464Å
Ratio:a:b:c = 1.874 : 1 : 0.504
Unit Cell Volume:V 654.94 ų (Calculated from Unit Cell)
Z:8
Morphology:Crystals striated, short prismatic.
Crystal Atlas:
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Krennerite - Short prismatic [001]

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Optical Data of Krennerite

Type:Anisotropic
Anisotropism:Strong to dark brown
Colour in reflected light:Creamy white
Pleochroism:Weak

Chemical Properties of Krennerite

Formula:
(Au,Ag)Te
 
2
Essential elements:Au, Te
All elements listed in formula:Ag, Au, Te
Common Impurities:Fe

Relationship of Krennerite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.EA.05Sylvanite
(Au,Ag)
 
2
Te
 
4
2.EA.10Calaverite
AuTe
 
2
2.EA.15Kostovite
CuAuTe
 
4
2.EA.20Berndtite
SnS
 
2
2.EA.20Kitkaite
NiTeSe
2.EA.20Melonite
NiTe
 
2
2.EA.20Merenskyite
(Pd,Pt)(Te,Bi)
 
2
2.EA.20Moncheite
(Pt,Pd)(Te,Bi)
 
2
2.EA.20Shuangfengite
IrTe
 
2
2.EA.20Sudovikovite
PtSe
 
2
2.EA.25Verbeekite
PdSe
 
2
2.EA.30Drysdallite
Mo(Se,S)
 
2
2.EA.30Jordisite
MoS
 
2
2.EA.30Molybdenite
MoS
 
2
2.EA.30Tungstenite
WS
 
2
Related Minerals - Hey's Index Grouping:

- +
3.3.1Calaverite
AuTe
 
2
3.3.3Kostovite
CuAuTe
 
4
3.3.4Uytenbogaardtite
Ag
 
3
AuS
 
2
3.3.5Fischesserite
Ag
 
3
AuSe
 
2
3.3.6Petrovskaite
AuAg(S,Se)
3.3.7Petzite
Ag
 
3
AuTe
 
2
3.3.8Muthmannite
AuAgTe
 
2
3.3.9Sylvanite
(Au,Ag)
 
2
Te
 
4
3.3.10Penzhinite
(Ag,Cu)
 
4
Au(S,Se)
 
4
3.3.11Bezsmertnovite
(Au,Ag)
 
4
Cu(Te,Pb)
3.3.12Bilibinskite
PbCuAu
 
3
Te
 
2
3.3.13Bogdanovite
(Au,Te,Pb)
 
3
(Cu,Fe)
3.3.14Montbrayite
(Au,Sb)
 
2
Te
 
3

Other Names for Krennerite

Synonyms:
Müllerine
Other Languages:
German:Krennerit
Bunsenin
Gelberz
Müllerin
Weißerz
Weißtellur
Russian:Креннерит
Spanish:Krennerita

Other Information

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

References for Krennerite

Reference List:Klaproth, M.H. (1802): Chemische Untersuchung der siebenbürgischen Golderze, C. Gelberz, Beiträge zur chemischen Kenntniss der Mineralkörper, Dritter Band, Rottmann Berlin, 20-25

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: 333-334.

Tschermaks Mineralogische und Petrographische Mitteilungen (1984): 33: 253-262.

Internet Links for Krennerite

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    Localities for Krennerite

    Hide Locality List
    The 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. ? 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
    		Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina)
    • Salta
      • Organullo Mining District
    		Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina)
    Australia
     
    • Western Australia
      • Goldfields-Esperance region
        • Kalgoorlie-Boulder City
          • Kalgoorlie
            • Golden Boulder mine
    		Econ Geol (1997) 92:468-484
    Canadian Mineralogist (2003) 41, 1503-1524
    Canada
     
    • Ontario
      • Timiskaming District
        • Bannockburn Township
          • Matachewan
    		Econ.Geol.: 83; 395-404
    • Québec
      • Abitibi-Témiscamingue
        • La Vallée-de-l'Or RCM
          • Val d'Or
    		Sabina (2003) 177-178.
        • Rouyn-Noranda TE
    		Sabina (2003) 66.
    Am Min (1948) 31:515-526
    Chile
     
    • Coquimbo Region
      • Elqui Province
        • El Indio deposit
    		Llaumet C./Henríquez F. (1976); "Faja de mineralización de oro, plata, cobre y arsenico en la Cordillera Andina de la III y IV región"; Primero Congreso Geológico Chileno, Vol. II.
    China
     
    • Henan Province
      • Luoyang Prefecture
        • Luanchuan Co.
          • Xiaoqinling gold belt
    		Jingwen Mao, Goldfarb, R.J., Zhengwei Zhang, Wenyi Xu, Yumin Qiu, and Jun Deng (2002): Mineralium Deposita 37(3/4), 306-325.
    Egypt
     
    • Red Sea Governorate
      • Eastern Desert
        • Qift (Kift; Coptos) area
    		Osman A. M., Pieczonka J., Piestrzyński A. 2002: Relationships between gold and tellurides in the El Sid gold deposit, Eastern Desert, Egypt. Mineralogia Polonica, vol. 33, no 2, 15-26
    Fiji
     
    • Viti Levu
      • Tavua Gold Field
        • Vatukoula
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Econ.Geol.: 83; 395-404; Econ Geol (1987) 82:345-370
    16th Australian Geological Convention, Adelaide,
    J.M. Boirat and J. Lum, Chron. Rech. Min., N° 486, 1987, pp 55-62, BRGM.
    Finland
     
    • Etelä-Suomen Lääni
      • Orivesi
    		Economic Geology (1996) 91:1335-1353
    Hungary
     
    • Heves Co.
      • Mátra Mts.
        • Parádfürdő
    		Szakáll & Jánosi : Minerals of Hungary, 1995
    India
     
    • Bihar
      • Singhbhum District
    		Econ.Geol.: 83; 395-404
    Japan
     
    • Hokkaido Island
    		Mineralogical Journal Vol. 14 (1989) , No. 7 pp 299-302
    • Honshu Island
      • Chubu Region
        • Shizuoka Prefecture
          • Shimoda City
            • Rendaiji
    		Int Geol Congr (2008) Oslo. MRD-09
      • Tohoku Region
        • Aomori Prefecture
    		Aoki (1988) Sanko-Gakkai Kou'en-Youshi, 60.
          • Shimokita-gun
    		K Jouhou, #131 (15-4-2002)
    Kazakhstan
     
    • Kökshetaü Oblysy (Kokshatau [Kokchetav] Oblast')
    		P.M. Kartashov analytical data
    Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mexico
     
    • Sonora
      • Mun. de Moctezuma
    		Lapis 2001(1), 11-40
    Republic of Macedonia
     
    • Radovish
    		Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.
    Romania
     
    • Alba Co.
      • Zlatna (Zalatna; Zalathna)
    		Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
    • Hunedoara Co.
      • Brad
    		Econ.Geol.: 83; 395-404
    Term.Füz.(1877) 1, 33-35
    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
    • Far-Eastern Region
      • Kamchatka Oblast'
    		V.A. Kovalenker, O.Yu. Plotinskaya (2005): Te and Se mineralogy of Ozernovskoe and Prasolovskoe epithermal gold deposits, Kuril – Kamchatka volcanic belt. Geochemistry, Mineralogy and Petrology 43, 118-123. [http://www.geology.bas.bg/mineralogy/gmp_files/gmp43/Kovalenker.pdf]
      • Sakhalinskaya Oblast'
        • Kuril Islands
          • Kunashir Island
    		Econ Geol (1997) 92:468-484
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Rezh District
    		D. Krinov data
      • Southern Urals
        • Bashkortostan (Bashkiria) Republic
    		Vikent\'ev, I.V., Moloshag, V.P. and Yudovskaya, M.A. (2006): Geology of Ore Deposits 48(2), 77-107.
    South Africa
     
    • Northwest Province
      • Western Bushveld Complex
        • Rustenburg District
    		Minerals of South Africa
    USA
     
    • Arizona
      • Cochise Co.
        • Mule Mts
          • Warren District
    		[MinRec 24:421]
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 269; Graeme, R. (1993), Bisbee revisited, Min.Rec.: 24: 421-436.
        • Tombstone Hills
          • Tombstone District
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 269.
    • Colorado
      • Boulder Co.
        • Gold Hill District
    		Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
        • Jamestown District
    		Minerals of Colorado (1997) Eckels, E. B.
        • Magnolia District
    		Minerals of Colorado (1997) Eckels, E. B.
        • Sugarloaf District
    		Minerals of Colorado (1997) Eckels, E. B.
        • Ward District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Clear Creek Co.
        • Idaho Springs District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Hinsdale Co.
        • Lake City District (Lake District)
    		Minerals of Colorado (1997) Eckels, E. B.
          • Lake City
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Econ Geol (1980) 75:963-991; Econ Geol (1985) 80:410-417
      • La Plata Co.
        • La Plata District (California District)
    		Minerals of Colorado (1997) Eckels, E. B.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Saguache Co.
        • Bonanza District (Kerber Creek District)
          • Bonanza
    		Minerals of Colorado (1997) Eckels, E. B.
      • San Juan Co.
        • Eureka District
          • Gladstone
    		Minerals of Colorado (1997) Eckels, E. B.
      • Teller Co.
    		Minerals of Colorado (1997) Eckels, E. B.
          • Cripple Creek
    No reference listed
    Minerals of Colorado (1997) Eckels, E. B.
    Collection of Barry Murphy, Micromount specimen catalogue number 00835
          • Eclipse Gulch
    		Min Rec 36:2 pp143-185
    Minerals of Colorado (1997) Eckels, E. B.
    Min Rec 36:2 pp143-185
    Minerals of Colorado (1997) Eckels, E. B.
    • Montana
      • Fergus Co.
        • Warm Springs District (Gilt Edge District; Gold Hill District; Maiden District)
          • Cone Butte Sub District
    		Econ Geol (1994) 89:602-627
      • Jefferson Co.
        • Whitehall District (Cardwell District)
    		Spry, P.G., Foster, F., Truckle, J.S., and Chadwick, T.H. (1997): Mineralogy and Petrology 59, 143-164.; Econ.Geol.: 83; 395-404; Econ Geol (1985) 80:1689-1706; Economic Geology,(1996) Vol. 91-3, pp.507-526
    • Nevada
      • Esmeralda Co.
        • Goldfield District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
        • Paradise Peak District
    		Econ Geol (1994) 89:1228-1248
    A Listing of North Carolina Minerals- Leonard S. Wiener and Sigrid Ballew-1995
      • Montgomery Co.
        • Carolina Slate Belt
    		Callahan,J.E., J.R Craig, and T.N. Solberg,1995, Telluride mineralization of the southeastern United States, Southeastern Geology 35: 139- 151
    • South Carolina
      • Lancaster Co.
        • Kershaw
    		Bell.H and Larson,R.R.,1984,A new occurrence of telluride minerals in South Carolina:Southeastern Geology,v..24n.4,pg.189-194
    • Utah
      • Utah Co.
        • East Tintic Mts
          • East Tintic District
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Washington
      • Chelan Co.
    		Minerals of Washington, Bart Cannon, 1975
        • Wenatchee District
          • Wenatchee
            • Squillchuck Creek
    		Lasmanis, R. (1995): Mineral News: A Compendium of Wenatchee District Mineralogy, Chelan County, Washington, p.6-7
      • Ferry Co.
        • Sheriden District
          • Bodie Mountain
    		Metal Mines of Washington-Preliminary Report; Derkey, Joseph, Lasmanis
    • Wisconsin
      • Taylor Co.
        • Gilman
    Mineral and/or Locality
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