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About MontbrayiteHide

Crystal System:
After the discovery site, the Robb-Montbray mine and Montbray Township.
Compare the chemically similar 'UM1984-41-Te:AuSb'.

The former formula, (Au,Sb)2Te3, was changed due to the IMA 17-F redefinition proposal.

Classification of MontbrayiteHide

Approved, 'Grandfathered' (first described prior to 1959)
Redefined by the IMA
Approval History:
IMA 17-F

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
D : Metal Sulfides, M: S = 3 :4 and 2:3
B : M:S = 2:3

11 : AmBnXp, with (m+n):p = 2:3

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

Physical Properties of MontbrayiteHide

2½ on Mohs scale

Chemical Properties of MontbrayiteHide

IMA Formula:
Common Impurities:

Crystallography of MontbrayiteHide

Crystal System:
Cell Parameters:
a = 12.11 Å, b = 13.44 Å, c = 10.8 Å
α = 104.38°, β = 97.5°, γ = 107.93°
a:b:c = 0.901 : 1 : 0.804
Unit Cell V:
1,578.64 ų (Calculated from Unit Cell)

Type Occurrence of MontbrayiteHide

Other Language Names for MontbrayiteHide

Simplified Chinese:亮碲金矿

Related Minerals - Nickel-Strunz GroupingHide

2.DB.05AntimonseliteSb2Se3Orth. mmm (2/m 2/m 2/m)
2.DB.05BismuthiniteBi2S3Orth. mmm (2/m 2/m 2/m)
2.DB.05GuanajuatiteBi2Se3Orth. mmm (2/m 2/m 2/m) : Pnma
2.DB.05PääkköneniteSb2AsS2Mon. 2/m : B2/m
2.DB.05StibniteSb2S3Orth. mmm (2/m 2/m 2/m)
2.DB.10Ottemannitebeta Sn2S3
2.DB.10SuredaitePbSnS3Orth. mmm (2/m 2/m 2/m)
2.DB.15Bowieite(Rh,Ir,Pt)2S3Orth. mmm (2/m 2/m 2/m)
2.DB.25EdgariteFeNb3S6Hex. 6 2 2 : P63 2 2
2.DB.30Tarkianite(Cu,Fe)(Re,Mo)4S8Iso. 4 3m
2.DB.35CameroniteCu5-x(Cu,Ag)3+xTe10 (x = 0.43)Mon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

3.3.2KrenneriteAu3AgTe8Orth. mm2 : Pma2
3.3.4UytenbogaardtiteAg3AuS2Trig. 3m (3 2/m) : R3c
3.3.5FischesseriteAg3AuSe2Iso. 4 3 2 : I41 3 2
3.3.7PetziteAg3AuTe2Iso. 4 3 2 : I41 3 2
3.3.8MuthmanniteAuAgTe2Mon. 2/m : P2/m
3.3.9Sylvanite(Au,Ag)2Te4Mon. 2/m : P2/b

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 MontbrayiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
PEACOCK, M.A. & THOMPSON, R.M. (1946): Montbrayite, a new gold telluride. American Mineralogist 31, 515-526.
THOMPSON, R.M. (1949): The telluride minerals and their occurrence in Canada. American Mineralogist 34, 342-382.
Rucklidge, J. (1969): Frohbergite, montbrayite, and a new Pb-Bi telluride. Can. Mineral. 9, 709-716.
BACHECHI, F. (1971): Crystal structure of montbrayite. Nature, Physical Sciences 231, 67-68.
American Mineralogist (1972): 57: 146-154.
Bindi, L., Paar, W.H., Lepore G.O. (2018): Montbrayite, (Au,Ag,Sb,Pb,Bi)23(Te,Sb,Pb,Bi)38, from the Robb-Montbray mine, Montbray, Québec: Crystal structure and revision of the chemical formula. Canadian Mineralogist, 56, 129-142.

Internet Links for MontbrayiteHide

Localities for MontbrayiteHide

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.
  • Western Australia
    • Kalgoorlie-Boulder Shire
      • Kalgoorlie-Boulder
Canadian Mineralogist (2003) 41, 1503-1524
  • Sofiya Oblast (Sofia Oblast)
    • Chelopech
Bonev, I.K.; Petrunov, R.; Cook, N. J.; Ciobanu, C. L. (2005): Kostovite and its argentian varieties: Deposits and mineral associations. Bulgarian Academy of Sciences, Geochemistry, Mineralogy and Petrology. 42, 1-22
Canada (TL)
  • Québec
    • Abitibi-Témiscamingue
      • Rouyn-Noranda TE
PEACOCK, M.A. & THOMPSON, R.M. (1946): Montbrayite, a new gold telluride. American Mineralogist 31, 515-526. THOMPSON, R.M. (1949): The telluride minerals and their occurrence in Canada. American Mineralogist 34, 342-382. BACHECHI, F. (1971): Crystal structure of montbrayite. Nature, Physical Sciences 231, 67-68. Econ.Geol.: 83; 395-404.
  • Hebei Province
    • Zhangjiakou Prefecture
      • Chongli Co.
        • Dongping Au-Te ore field
Changjin Cai (1993): Acta Mineralogica Sinica 13(1), 65-71
  • Shandong Province
    • Linyi Prefecture
      • Pingyi Co.
        • Tongshi complex
Changfu Chen, Yanbing Li, and Mingxia Jiang (1999): Geological Science and Technology Information 18(1), 60-66
  • Viti Levu
    • Tavua Gold Field
      • Vatukoula
Scherbarth, N. L., & Spry, P. G. (2006). Mineralogical, petrological, stable isotope, and fluid inclusion characteristics of the Tuvatu gold-silver telluride deposit, Fiji: Comparisons with the Emperor deposit. Economic Geology, 101(1), 135-158.
  • Eastern Finland Region
Hytönen,K. (1999): Suomen Mineraalit. Geologian tutkimuskeskus. Erillisjulkaisu, Jyväskylä, 399 pp (p.346)
Geological Survey of Finland 2008. Pampalo(Ward)-Gold Database.
  • Lapland Region
    • Ylitornio
Nebocat, J., & Eng, P. (2011) Progress Report on the Geology, Mineralization and Exploration Activities on the Rompas Gold-Uranium Property.
  • Western and Inner Finland Region
    • Orivesi
Kinnunen, Aulis 2008. A paleoproterozoic high-sulfidation epithermal deposit at Orivesi, Southern Finland. Acta Universitatis Ouluensis, Series A. Scientiae Rerum Naturalium 507.
  • Akmola
Spiridonov, Ernst M. "New Data on Mineralogy of Deposits of Plutonogenic Gold-quartz Formation in the Northern Central Kazakhstan. Part I."
  • East Kazakhstan
    • Kurchumskiy District
Глоба В.А. Месторождение Манка - новый геолого-промышленный тип месторождений золота. // Изв. НАН РК, Сер. геол. 2006, 5(403), с.20-28.
  • Sonora
    • Mun. de Moctezuma
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.
  • Hunedoara Co.
    • Brad
      • Crișcior (Criștior; Zarándkristyor; Kristyor; Körösfalva; Kreischquell)
        • Brad Muşariu (Brád; Muşariu)
          • Mustari (Muszàri)
Econ.Geol.: 83; 395-404
  • Eastern-Siberian Region
    • Sakha Republic (Yakutia)
      • Aldan Shield
        • Aldan
Leontev, V. I., & Bushuev, Y. Y. E. (2017). Ore Mineralization in Adular-Fluorite Metasomatites: Evidence of the Podgolechnoe Alkalic-Type Epithermal Gold Deposit (Central Aldan Ore District, Russia). In Key Engineering Materials (Vol. 743, pp. 417-421). Trans Tech Publications.
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Verkhneural'sk District
          • Mezhozerny settlement
Amplieva, E.E. (2008): Geology of Ore Deposits 50(5), 404-422.
      • Orenburgskaya Oblast'
        • Gay
Vikent'ev, I.V., Moloshag, V.P. and Yudovskaya, M.A. (2006): Geology of Ore Deposits 48(2), 77-107.; 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.
  • Hälsingland
    • Ljusdal
Nysten, P. & Annersten, H. (1984): The gold mineralization at Enåsen, central Sweden. Geologiska Foereningens i Stockholm Foerhandlingar 106, 245-256.
  • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
  • Nevada
    • Lincoln Co.
Rocks & Minerals, Nov. 1999
NBMG Spec. Pub. 31 Minerals of Nevada
  • Tashkent Viloyati (Toshkent)
    • Angren Region
      • Chatkal-Kuraminskii Range
Eleonora A. Dunin-Barkovskaya, Umid K. Aripov, L.A. Tsoy, M.A. Kim (2005) Mineralogical features and ore-forming conditions of goldbearing deposits of Uzbekistan. GEOCHMISTRY, MINERALOGY AND PETROLOGY 43 SOFIA pp 69-74
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