Montbrayite

2.DB.20

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

Dana 8th ed.:

2.11.8.1

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

Hey's CIM Ref.:

3.3.14

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

Hardness:

2½ on Mohs scale

Chemical Properties of MontbrayiteHide

Formula:

(Au,Ag,Sb,Bi,Pb)₂₃(Te,Sb,Bi,Pb)₃₈

Elements listed:

Ag, Au, Bi, Pb, Sb, Te - search for minerals with similar chemistry

Common Impurities:

Ag,Pb,Bi,S

Crystallography of MontbrayiteHide

Crystal System:

Triclinic

Cell Parameters:

a = 12.11 Å, b = 13.44 Å, c = 10.8 Å
α = 104.38°, β = 97.5°, γ = 107.93°

Ratio:

a:b:c = 0.901 : 1 : 0.804

Unit Cell V:

1,578.64 Å³ (Calculated from Unit Cell)

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure

ID	Species	Reference	Link	Year	Locality	Pressure (GPa)	Temp (K)
0014682	Montbrayite	Bachechi F (1971) Crystal structure of montbrayite Nature Physical Science 231 67-68		1971	Robb-Montbray, Quebec	0	293

CIF Raw Data - click here to close

data_global
_chemical_name_mineral 'Montbrayite'
loop_
_publ_author_name
'Bachechi F'
_journal_name_full 'Nature Physical Science'
_journal_volume 231 
_journal_year 1971
_journal_page_first 67
_journal_page_last 68
_publ_section_title
;
 Crystal structure of montbrayite
;
_database_code_amcsd 0014682
_chemical_compound_source 'Robb-Montbray, Quebec'
_chemical_formula_sum 'Au2 Te3'
_cell_length_a 12.11
_cell_length_b 13.44
_cell_length_c 10.80
_cell_angle_alpha 104.38
_cell_angle_beta 97.5
_cell_angle_gamma 107.93
_cell_volume 1578.640
_exptl_crystal_density_diffrn      9.804
_symmetry_space_group_name_H-M 'P 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Au1   0.08000   0.05100   0.42800
Te1   0.18000   0.12800   0.22900
Au2   0.06800   0.31500   0.24700
Au3   0.32700   0.24800   0.05100
Te2   0.22000   0.42300   0.10900
Te3   0.11800   0.57200   0.07800
Au4   0.52400   0.13700   0.43300
Te4   0.43000   0.29800   0.47600
Te5   0.24400   0.43100   0.47600
Au5   0.75400   0.06100   0.22000
Te6   0.64200   0.23300   0.26900
Te7   0.49100   0.38600   0.25500
Au6   0.39400   0.55600   0.31100
Te8   0.31700   0.72700   0.37300
Au7   0.13100   0.88800   0.40500
Au8   0.89400   0.16300   0.06500
Te9   0.76200   0.31500   0.08100
Au9   0.66200   0.50100   0.09000
Te10   0.59500   0.66200   0.14400
Te11   0.41700   0.82500   0.15200
Au10   0.32400   0.99400   0.20300
Te12   0.93100   0.18400   0.42500
Au12   0.84700   0.38400   0.47800
Te13   0.98500   0.46900   0.34000
Te14   0.84600   0.64200   0.29200
Au12   0.75400   0.80800   0.36000
Te15   0.66100   0.98000   0.37600
Au13   0.97800   0.73600   0.14500
Te16   0.88500   0.89600   0.16500
Te17   0.57500   0.90800   0.02500
Te18   0.91700   0.94900   0.53300
Te19   0.81700   0.86000   0.80800
Au14   0.91900   0.69300   0.73800
Au15   0.68000   0.76100   0.95700
Te20   0.80300   0.59300   0.91200
Au16   0.91700   0.42000   0.90000
Au17   0.50000   0.86600   0.59300
Te21   0.58300   0.69500   0.48600
Te22   0.73300   0.55300   0.54100
Au18   0.22400   0.93500   0.77600
Te23   0.31400   0.75300   0.74500
Te24   0.48500   0.60800   0.72400
Au19   0.58500   0.45200   0.67100
Te25   0.74700   0.32200   0.65600
Au20   0.81000   0.10900   0.60500
Te26   0.10500   0.84800   0.94000
Au21   0.23400   0.68300   0.92700
Te27   0.32400   0.50700   0.91700
Te28   0.40500   0.31200   0.83300
Au22   0.57300   0.18800   0.83200
Te29   0.65200   0.00500   0.77000
Te30   0.03700   0.79500   0.57400
Au23   0.16700   0.61900   0.52600
Te31   0.01200   0.51800   0.69300
Au24   0.14500   0.36000   0.66100
Te32   0.29200   0.20600   0.62500
Te33   0.30600   0.03500   0.60200
Te34   0.00800   0.25600   0.82200
Te35   0.14900   0.09200   0.85100
Te36   0.40100   0.08800   0.99400

Type Occurrence of MontbrayiteHide

Type Locality:

ⓘ Robb-Montbray Mine, Rouyn-Noranda TE, Abitibi-Témiscamingue, Québec, Canada

Other Language Names for MontbrayiteHide

German:Montbrayit

Russian:Монтбреит

Simplified Chinese:亮碲金矿

Spanish:Montbrayita

Related Minerals - Nickel-Strunz Grouping Hide

2.DB.05	Antimonselite	Sb₂Se₃	Orth. mmm (2/m 2/m 2/m)
2.DB.05	Bismuthinite	Bi₂S₃	Orth. mmm (2/m 2/m 2/m)
2.DB.05	Guanajuatite	Bi₂Se₃	Orth. mmm (2/m 2/m 2/m) : Pnma
2.DB.05	Metastibnite	Sb₂S₃	Amor.
2.DB.05	Pääkkönenite	Sb₂AsS₂	Mon. 2/m : B2/m
2.DB.05	Stibnite	Sb₂S₃	Orth. mmm (2/m 2/m 2/m)
2.DB.10	Ottemannite	Sn₂S₃	Orth. mmm (2/m 2/m 2/m)
2.DB.10	Suredaite	PbSnS₃	Orth. mmm (2/m 2/m 2/m)
2.DB.15	Bowieite	(Rh,Ir,Pt)₂S₃	Orth. mmm (2/m 2/m 2/m)
2.DB.15	Kashinite	(Ir,Rh)₂S₃	Orth.
2.DB.25	Edgarite	FeNb₃S₆	Hex. 6 : P6₃
2.DB.30	Tarkianite	(Cu,Fe)(Re,Mo)₄S₈	Iso. 4 3m
2.DB.35	Cameronite	Cu_5-x(Cu,Ag)_3+xTe₁₀ (x = 0.43)	Mon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals Grouping Hide

3.3.1	Calaverite	AuTe₂	Mon.
3.3.2	Krennerite	Au₃AgTe₈	Orth. mm2 : Pma2
3.3.3	Kostovite	CuAuTe₄	Orth.
3.3.4	Uytenbogaardtite	Ag₃AuS₂	Trig. 3m (3 2/m) : R3c
3.3.5	Fischesserite	Ag₃AuSe₂	Iso. 4 3 2 : I4₁ 3 2
3.3.6	Petrovskaite	AuAgS	Mon.
3.3.7	Petzite	Ag₃AuTe₂	Iso. 4 3 2 : I4₁ 3 2
3.3.8	Muthmannite	AuAgTe₂	Mon. 2/m : P2/m
3.3.9	Sylvanite	(Au,Ag)₂Te₄	Mon. 2/m : P2/b
3.3.10	Penzhinite	(Ag,Cu)₄Au(S,Se)₄	Hex.
3.3.11	Bezsmertnovite	(Au,Ag)₄Cu(Te,Pb)	Orth.
3.3.12	Bilibinskite	PbCu₂Au₃Te₂	Iso.
3.3.13	Bogdanovite	(Au,Te,Pb)₃(Cu,Fe)	Iso.

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

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External Links:

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Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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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.


Australia
Western Australia Kalgoorlie-Boulder Shire Kalgoorlie-Boulder ⓘ Golden Mile Mines	Canadian Mineralogist (2003) 41, 1503-1524
ⓘ Paringa Gold Mine (Paringa Extended; Croesus South)	Mueller, A. G., & Muhling, J. R. (2019). Early pyrite and late telluride mineralization in vanadium-rich gold ore from the Oroya Shoot, Paringa South mine, Golden Mile, Kalgoorlie: 3. Ore mineralogy, Pb-Te (Au-Ag) melt inclusions, and stable isotope constraints on fluid sources. Mineralium Deposita, 1-34.

Bulgaria
Sofia Province Chelopech Municipality ⓘ Chelopech Au-Cu Mine	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 ⓘ Robb-Montbray Mine (TL)	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.

China
Hebei Zhangjiakou Chongli District Shuiquangou Complex Dongping Au-Te ore field ⓘ Dongping Mine	Changjin Cai (1993): Acta Mineralogica Sinica 13(1), 65-71
Shandong Linyi Pingyi County Tongshi complex ⓘ Guilaizhuang Mine	Changfu Chen, Yanbing Li, and Mingxia Jiang (1999): Geological Science and Technology Information 18(1), 60-66

Fiji
Viti Levu Vatukoula Gold Field (Tavua Gold Field) Vatukoula ⓘ Tuvatu Mine ?	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.

Finland
Lapland Ylitornio ⓘ Rompas	Nebocat, J., & Eng, P. (2011) Progress Report on the Geology, Mineralization and Exploration Activities on the Rompas Gold-Uranium Property.
North Karelia ⓘ Ilomantsi	Hytönen,K. (1999): Suomen Mineraalit. Geologian tutkimuskeskus. Erillisjulkaisu, Jyväskylä, 399 pp (p.346)
ⓘ Pampalo	Geological Survey of Finland 2008. Pampalo(Ward)-Gold Database.
Pirkanmaa Orivesi ⓘ Kutemajärvi mine	Kinnunen, Aulis 2008. A paleoproterozoic high-sulfidation epithermal deposit at Orivesi, Southern Finland. Acta Universitatis Ouluensis, Series A. Scientiae Rerum Naturalium 507.

Kazakhstan
Akmola Region ⓘ Zhana-Tyube Au deposit	Spiridonov, Ernst M. "New Data on Mineralogy of Deposits of Plutonogenic Gold-quartz Formation in the Northern Central Kazakhstan. Part I."
East Kazakhstan Kurshim ⓘ Manka Au deposit	Глоба В.А. Месторождение Манка - новый геолого-промышленный тип месторождений золота. // Изв. НАН РК, Сер. геол. 2006, 5(403), с.20-28.

Mexico
Sonora Moctezuma Municipality ⓘ Moctezuma	Lapis 2001(1), 11-40
ⓘ Moctezuma Mine (Bambolla Mine)	Bonev, I.K., Petrunov, R., Cook, N.J., Ciobanu, C.L. (2005) Kostovite and its argentian varieties: Deposits and mineral associations. Geochemistry, Mineralogy and Petrology (Bulgarian Academy of Sciences): 42: 1-22.

Romania
Hunedoara Brad Crișcior (Criștior; Zarándkristyor; Kristyor; Körösfalva; Kreischquell) Brad Muşariu (Brád; Muşariu) Mustari (Muszàri) ⓘ Musariu Cu-Au deposit	Econ.Geol.: 83; 395-404

Russia
Chelyabinsk Oblast Verkhneuralsky District Mezhozerny settlement ⓘ Talgan Cu-Zn deposit	Amplieva, E.E. (2008): Geology of Ore Deposits 50(5), 404-422.
Orenburg Oblast Gay ⓘ Gayskoe Zn-Cu deposit (Gayskoye; Gaiskoye)	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.
Sakha Republic (Yakutia) Aldan ⓘ Podgolechnoe deposit	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.

Sweden
Gävleborg County Ljusdal ⓘ Enåsen Mine	Nysten, P. & Annersten, H. (1984): The gold mineralization at Enåsen, central Sweden. Geologiska Foereningens i Stockholm Foerhandlingar 106, 245-256.

USA
Colorado La Plata Co. La Plata Mining District (California Mining District) ⓘ Bessie G Mine	Steve Sorrell Collection
Nevada Lincoln Co. ⓘ Delamar Mining District	Rocks & Minerals, Nov. 1999
ⓘ April Fool mine (Swifter mine)	NBMG Spec. Pub. 31 Minerals of Nevada

Uzbekistan
Tashkent Okhangaron District ⓘ Kairagach Au deposit (Kaygarach)	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
ⓘ Kockbulak mine (Kochbulak Au-Ag-Te deposit)	GEOCHMISTRY, MINERALOGY AND PETROLOGY • 4 3 • SOFIA pp 69-74

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