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light bronze
3 - 3½
Specific Gravity:
Crystal System:
For the type locality, the Empress Josephine Mine, Colorado.
Related to stützite.

Hide all sections | Show all sections

Classification of EmpressiteHide

Approved, 'Grandfathered' (first described prior to 1959)

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.

8 : AmXp, with m:p = 1:1

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

Physical Properties of EmpressiteHide

light bronze
Tarnishes darker bronze
grey-black to black
3 - 3½ on Mohs scale
VHN25=135 - 151 kg/mm2 - Vickers
None Observed
Irregular/Uneven, Sub-Conchoidal
7.61 g/cm3 (Measured)    7.61 g/cm3 (Calculated)

Optical Data of EmpressiteHide

strong - gray to yellowish white to grasyish blue
moderate to strong
Colour in reflected light:
greyish white
Gray to creamy white

Chemical Properties of EmpressiteHide

Common Impurities:

Crystallography of EmpressiteHide

Crystal System:
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 8.90 Å, b = 20.07 Å, c = 4.62 Å
a:b:c = 0.443 : 1 : 0.23
Unit Cell V:
825.24 ų (Calculated from Unit Cell)
Compact granular masses, rarely in crystals

Type Occurrence of EmpressiteHide

Other Language Names for EmpressiteHide

Simplified Chinese: 粒碲银矿

Common AssociatesHide

Associated Minerals Based on Photo Data:
Tellurium4 photos of Empressite associated with Tellurium on
Rodalquilarite3 photos of Empressite associated with Rodalquilarite on
Altaite2 photos of Empressite associated with Altaite on
Emmonsite1 photo of Empressite associated with Emmonsite on
Pyrite1 photo of Empressite associated with Pyrite on
Silver1 photo of Empressite associated with Silver on

Related Minerals - Nickel-Strunz GroupingHide

2.CB.05aColoradoiteHgTeIso. m3m (4/m 3 2/m)
2.CB.05aHawleyiteCdSIso. 4 3m : F4 3m
2.CB.05aMetacinnabarHgSIso. 4 3m : F4 3m
2.CB.05bSakuraiite(Cu,Zn,Fe)3(In,Sn)S4 Iso.
2.CB.05aSphaleriteZnSIso. 4 3m : F4 3m
2.CB.05aRudashevskyite(Fe,Zn)SIso. 4 3m : F4 3m
2.CB.10aChalcopyriteCuFeS2Tet. 4 2m : I4 2d
2.CB.10aGalliteCuGaS2Tet. 4 2m : I4 2d
2.CB.10bHaycockiteCu4Fe5S8Orth. 2 2 2
2.CB.10aLenaiteAgFeS2Tet. 4 2m : I4 2d
2.CB.10aRoquesiteCuInS2Tet. 4 2m : I4 2d
2.CB.10bTalnakhiteCu9(Fe,Ni)8S16Iso. 4 3m : I4 3m
2.CB.10aLaforêtiteAgInS2Tet. 4 2m : I4 2d
2.CB.15aČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
2.CB.15aFerrokësteriteCu2(Fe,Zn)SnS4Tet. 4 : I4
2.CB.15aHocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
2.CB.15aKësterite Cu2ZnSnS4Tet. 4 : I4
2.CB.15aPirquitasiteAg2ZnSnS4Tet. 4 : I4
2.CB.15aStanniteCu2FeSnS4Tet. 4 2m : I4 2m
2.CB.15cUM2006-11-S:CuFeGeZnCu8(Fe,Zn)3Ge2S12 (?)
2.CB.20ChatkaliteCu6FeSn2S8Tet. 4 2m : P4m2
2.CB.20MawsoniteCu6Fe2SnS8Tet. 4 2m : P4m2
2.CB.30ColusiteCu12VAs3S16Iso. 4 3m : P4 3n
2.CB.30GermaniteCu13Fe2Ge2S16Iso. 4 3m : P4 3n
2.CB.30Ovamboite Cu20(Fe,Cu,Zn)6W2Ge6S32Iso.
2.CB.35aKiddcreekiteCu6SnWS8Iso. 4 3m : F4 3m
2.CB.35aRenierite(Cu1+,Zn)11Fe4(Ge4+,As5+)2S16Tet. 4 2m : P4 2c
2.CB.35bCatamarcaiteCu6GeWS8Hex. 6mm : P63mc
2.CB.40LautiteCuAsSOrth. mmm (2/m 2/m 2/m) : Pnma
2.CB.45CadmoseliteCdSeHex. 6mm : P63mc
2.CB.45GreenockiteCdSHex. 6mm : P63mc
2.CB.45Wurtzite(Zn,Fe)SHex. 6mm : P63mc
2.CB.45RambergiteMnSHex. 6mm : P63mc
2.CB.45Buseckite(Fe,Zn,Mn)SHex. 6mm : P63mc
2.CB.55aCubaniteCuFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.55bIsocubaniteCuFe2S3Iso. m3m (4/m 3 2/m) : Fm3m
2.CB.60PicotpauliteTlFe2S3Orth. mmm (2/m 2/m 2/m) : Cmcm
2.CB.65ArgentopyriteAgFe2S3Mon. 2/m
2.CB.65SternbergiteAgFe2S3Orth. mmm (2/m 2/m 2/m)
2.CB.85MuthmanniteAuAgTe2Mon. 2/m : P2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.2.1AcanthiteAg2SMon. 2/m : P21/m
3.2.3NaumanniteAg2SeOrth. 2 2 2 : P21 21 21
3.2.4AguilariteAg4SeSMon. 2/m
3.2.5HessiteAg2TeMon. 2/m : P21/b
3.2.7StütziteAg5-xTe3, x = 0.24-0.36Hex. 6 : P6
3.2.8CervelleiteAg4TeSMon. 2/m
3.2.9DervilliteAg2AsS2Mon. 2/m : P2/b
3.2.10StromeyeriteAgCuSOrth. mmm (2/m 2/m 2/m)
3.2.11MckinstryiteAg5-xCu3+xS4Orth. mmm (2/m 2/m 2/m) : Pnma
3.2.14CameroniteCu5-x(Cu,Ag)3+xTe10 (x = 0.43)Mon. 2/m : B2/b
3.2.15Henryite(Cu,Ag)3+xTe2 , with x ~ 0.40 Iso. m3m (4/m 3 2/m) : Fd3c
3.2.16SternbergiteAgFe2S3Orth. mmm (2/m 2/m 2/m)
3.2.17ArgentopyriteAgFe2S3Mon. 2/m
3.2.18Geffroyite(Cu,Fe,Ag)9(Se,S)8Iso. m3m (4/m 3 2/m) : Fm3m
3.2.19ArgentopentlanditeAg(Fe,Ni)8S8Iso. m3m (4/m 3 2/m) : Fm3m

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 EmpressiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bradley (1914), American Journal of Science: 38: 163.
Schaller (1914), Washington Academy of Science Journal: 4: 497.
Bradley (1915), American Journal of Science: 39: 223.
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: 260.
Thompson, R.M., M.A. Peacock, J.F. Rowland, and L.G. Berry (1951): Empressite and “stuetzite”. Am. Mineral., 36, 458-469.
Honea, R.M. (1964) Empressite and stuetzite redefined. American Mineralogist 49, 325-328.
Cabri, L.J. (1965) Discussion of “empressite and stuetzite redefined” by R.M. Honea. Am. Mineral., 50, 795-801.
Stumpfl, E.F. and J. Rucklidge (1968) New data on natural phases in the system Ag–Te. American Mineralogist 53, 1513–1522.
Criddle, A.J. and C.J. Stanley, Editors. (1993) Quantitative data file for ore minerals, 3rd ed. Chapman & Hall, London, 154.
Bindi, L., P.G. Spry, and C. Cipriani (2004) Empressite, AgTe, from the Empress-Josephine mine, Colorado, U.S.A.: composition, physical properties, and determinatioon of the crystal structure. American Mineralogist 89, 1043-1047.

Internet Links for EmpressiteHide

Localities for EmpressiteHide

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.
  • Kotayk' Province
    • Hrazdan
Kovalenker, V. A., Zalibekyan, M. A., Laputina, I. P., Malov, V. S., Sandomirskaya, S. M., Garas' ko, M. I., & Mkhitaryan, D. I. (1990). Sulfide-telluride mineralization of the Megradzor ore field, Armenia. International Geology Review, 32(7), 705-720.
  • South Australia
    • Mt Lofty Ranges
      • South Mt Lofty Ranges (Adelaide Hills)
        • Williamstown
          • Barossa and Para Wirra Goldfields
            • Humbug Scrub Diggings
Griessmann, M. (2011). Gold mineralisation in the Adelaide fold belt. PhD Thesis University of Adelaide.
  • Salzburg
    • Hohe Tauern
      • Felben valley
        • Felben
          • Haidbachgraben
S.Schwabl (2016)
  • Sofiya Oblast (Sofia Oblast)
    • Zlatitsa Obshtina
      • Zlatitsa
K. Bogdanov, A. Filipov, R. Kehayov (2005): Au-Ag-Te-Se minerals in the Elatsite porphyry-copper deposit, Bulgaria. Geochemistry, Mineralogy and Petrology, 43, 13-19.
  • British Columbia
    • Skeena Mining Division
      • Pitman
R. M. Thompson (1954) Mineral occurrences in Western Canada. American Mineralogist 39:525-528
  • Ontario
    • Sudbury District
      • Levack Township
Canadian Mineralogist Vol. 17, pp.275-285 (1979); Ames, D.E., Kjarsgaard, I.M., and Douma, S.L., 2003, Sudbury Ni-Cu-PGE Ore Mineralogy Compilation: Sudbury Targeted Geoscience Initiative (TGI): Geological Survey of Canada, Open File 1787
      • MacLennan Township
Ames, D.E., Kjarsgaard, I.M., and Douma, S.L., (2003), Sudbury Ni-Cu-PGE Ore Mineralogy Compilation: Sudbury Targeted Geoscience Initiative (TGI): Geological Survey of Canada, Open File 1787
    • Thunder Bay District
      • Coldwell complex
Mcdonald, A.M., Cabri, L.J., Stanley, C.J., Good, D.J., Redpath, J., Lane, G., Spratt, J. & Ames, D.E. (2015) Coldwellite, Pd3Ag2S, a new mineral species from the Marathon deposit, Coldwell complex, Ontario, Canada. Canadian Mineralogist 53, 1-13.
  • Hebei Province
    • Chengde Prefecture
      • Xinglong Co.
Yingfu Zhao and Zengyao Lu (2004): Mineral Resources and Geology 18(3), 212-216
  • Hunan Province
    • Chenzhou Prefecture
      • Guiyang Co.
        • Huangshaping Pb-Zn-polymetallic ore field
Weining Zhou (1994): Mineral Resources and Geology 8(4), 233-244; American Mineralogist 89, 1043-1047
  • Jilin Province (Manchuria; Dongbei Region)
    • Yanbian Chaoxianzu Autonomous Prefecture
      • Helong Co.
Huanchun Duan and Shirong Zhu (1997): Mineral Resources and Geology 11(3), 199-204
  • Viti Levu
    • Tavua Gold Field
      • Vatukoula
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Econ Geol (1987) 82:345-370
  • Lapland Region
    • Sodankylä
      • Kevitsansarvi (Keivitsansarvi)
mutanen Tapani 1997. Geology and ore petrology of Akanvaara nd Koitelainen mafic layered intrusions and the Keivitsa -satovaara layered complex, Northern Finland. Geological Survey of Finland, bulletin 395. 233s.
  • Thraki Department (Thrace; Thracia)
    • Évros Prefecture
      • Alexandroupoli (Alexandroupolis)
        • Pefka
Repstock, A. (2011): Ore mineralogical investigation of the Au, Ag, Te, Cu, Pb, Zn-bearing epithermal veins at Pefka mine, western Thrace, northeastern Greece. Unpubl. Diploma Thesis, University of Hamburg, Germany, 97 pp. (in German).
  • Honshu Island
    • Chubu Region
      • Shizuoka Prefecture
        • Shimoda City
          • Rendaiji
Takasu (1965) Kobutsu-Gaku Zasshi (Journal of the Mineralogical Society of Japan), 7, 350-355.; Int Geol Congr (2008) Oslo. MRD-09
  • Nordland
    • Fauske
      • Sulitjelma
        • Sulitjelma Cu Mines
Cook, N. J. (1996): Mineralogy of the sulphide deposits at Sulitjelma, northern Norway. Ore Geology Reviews 11: 303-308
  • Podlaskie
    • Suwałki District
Nejbert K. 2008: Mineralogy of sulphides in mafic rocks of the Suwałki Anorthosite Massif, NE Poland. Mineralogia - Special Papers, vol. 32, p. 116
  • Hunedoara Co.
    • Brad
      • Crișcior (Criștior; Zarándkristyor; Kristyor; Körösfalva; Kreischquell)
        • Brad Muşariu (Brád; Muşariu)
          • Mustari (Muszàri)
Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155.; Săbău, G., Berbeleac, I., & Negulescu, E. (2013) The Coloradoite Occurrence of the Musariu (Metaliferi Mountains) Tellurium and Telluride Vein Mineralization and Its Position in the Depositional Sequence. Rev. Roum. Géologie, Tome 57, nos 1–2, p. 57–65, Bucureşti; Săbău, G., Berbeleac, I., Negulescu, E., & Costin, G. (2014). Uncommon telluride compositions from Musariu, Apuseni Mts., Romania. In 21st General IMA Meeting, abstract (Vol. 330).
    • Deva
  • Urals Region
    • Southern Urals
      • Bashkortostan Republic (Bashkiria Republic)
        • Uchaly
Vikentyev, I. V., & Vikentyeva, O. V. (2015). Precious metal minerals and “invisible” gold in sulfide ores of Urals. In Mater. of ХII Int. Sci. Conf.“Advanced Technologies, Equipment and Analytical Systems for Materials and Nano-Materials (Vol. 3, pp. 33-41).; Vinokurov, S. F., Vikent’ev, I. V., & Sychkova, V. A. (2010). Determining ionic gold species in massive sulfide ores. Geochemistry International, 48(5), 510-516.
South Korea
  • Gyeongsangnam-do (Kyongsang-namdo)
Econ Geol (1990) 85:1114-1132
  • Värmland
    • Arvika
      • Glava
Cook, N. J.,Ciobanu, C.L.& Danushevskiy, L, (2007): LA-ICP-MS determination of gold in Bi-chalcogenides from four deposits in the Fennoscandian Shield. Geological Survey of Finland, Guide 53, 23-30; 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.
  • Wallis (Valais)
    • Goms
      • Furka pass area
        • Furka
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 177.
  • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990; Dmitriy I. Belakovskiy (2003): New Data on Minerals: 38: 101-112.; Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30; Plotinskaya, O. Y., Kovalenker, V. A., Seltmann, R., & Stanley, C. J. (2006). Te and Se mineralogy of the high-sulfidation Kochbulak and Kairagach epithermal gold telluride deposits (Kurama Ridge, Middle Tien Shan, Uzbekistan). Mineralogy and Petrology, 87(3-4), 187-207.; Kovalenker, V. A., Safonov, Y. G., Naumov, V. B., & Rusinov, V. L. (1997). The Epithermal Gold-Telluride Kochbulak Deposit. Geology of Ore Deposits C/C of Geologiia Rudnykh Mestorozhdenii, 39, 107-128.
  • Marmara Region
    • Balikesir Province
      • Ayvalık
Oyman, T. (2010): Geochemistry, mineralogy and genesis of the Ayazmant Fe–Cu skarn deposit in Ayvalik, (Balikesir), Turkey. Ore Geology Reviews 37, 175-201.
  • Arizona
    • Cochise Co.
      • Tombstone Hills
        • Tombstone District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 212.; Williams, S. (1980). Schieffelinite, a new lead tellurate-sulphate from Tombstone, Arizona. Mineralogical Magazine, 43(330), 771-773.
  • Colorado
    • Boulder Co.
      • Gold Hill District
Minerals of Colorado (1997) E.B. Eckel
American Mineralogist (1949) 34:341-382
Minerals of Colorado (1997) Eckel, E. B.
      • Magnolia District
In the collection of Brent Thorne.
      • Sugarloaf District
Minerals of Colorado (1997) Eckel, E. B.
    • Saguache Co.
      • Bonanza District (Kerber Creek District)
        • Bonanza
Am Min 49 (1964), 325; American Mineralogist (1930) 15: 272-273
Minerals of Colorado (1997) Eckel, E. B.
  • Washington
    • Chelan Co.
      • Wenatchee District
        • Wenatchee
          • Squillchuck Creek
Lasmanis, R. (1995): Mineral News: A Compendium of Wenatchee District Mineralogy, Chelan County, Washington, p.6-7
  • Wisconsin
    • Rusk Co.
      • Ladysmith
Olson, Maile and R. Lodge (2016) Ore petrography and precious metals of the primary Flambeau Mine sulfide ore: Abstract: Institue on Lake Superior Geology, Program and Abstracts, vol. 62, p. 113.
  • Masvingo
    • Chiredzi Mining District (Hartley Mining District)
      • Chiredzi
Oberthür, T., Weiser, T. W., Gast, L., & Kojonen, K. (2003). Geochemistry and mineralogy of platinum-group elements at Hartley Platinum Mine, Zimbabwe. Mineralium Deposita, 38(3), 327-343.
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