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Buraco do Ouro mine, Cavalcante, Goiás, Brazil

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Latitude & Longitude (WGS84): 13° 47' 45'' South , 47° 27' 35'' West
Latitude & Longitude (decimal): -13.79583,-47.45972
GeoHash:G#: 6vw3808ck
Locality type:Mine
Köppen climate type:Aw : Tropical savanna, wet


A gold mine that has been producing gold since 1750. Improved underground operations in the 1970s allowed PGM mineralization to become commercially attractive.

The coordinates are from Botelho et al. (2006) but are for the center of town.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


21 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

'Biotite'
Reference: Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Bohdanowiczite
Formula: AgBiSe2
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Chalcopyrite
Formula: CuFeS2
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Clausthalite
Formula: PbSe
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Ferroselite
Formula: FeSe2
Reference: Menez, J.& Botelho, N.F. (2016): Ore characterization and textural relationships among gold, selenides, platinum group minerals, and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 80 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12684 (2016); Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Gold
Formula: Au
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Graphite
Formula: C
Reference: Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Guanajuatite
Formula: Bi2Se3
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130
Isomertieite
Formula: Pd11Sb2As2
Reference: Menez, J.& Botelho, N.F. (2016): Ore characterization and textural relationships among gold, selenides, platinum group minerals, and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 80 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12684 (2016); Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Kalungaite (TL)
Formula: PdAsSe
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil. Mineralogical Magazine, 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Krut'aite
Formula: CuSe2
Reference: Menez, J.& Botelho, N.F. (2016): Ore characterization and textural relationships among gold, selenides, platinum group minerals, and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 80 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12684 (2016); Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
'Mertieite'
Reference: Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Mertieite-II
Formula: Pd8Sb2.5As0.5
Reference: Menez, J.& Botelho, N.F. (2016): Ore characterization and textural relationships among gold, selenides, platinum group minerals, and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 80 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12684 (2016)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Padmaite
Formula: PdBiSe
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Paraguanajuatite
Formula: Bi2Se3
Reference: Menez, J.& Botelho, N.F. (2016): Ore characterization and textural relationships among gold, selenides, platinum group minerals, and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 80 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12684 (2016); Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Platinum
Formula: Pt
Reference: Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Pyrite
Formula: FeS2
Reference: Menez, J.& Botelho, N.F. (2016): Ore characterization and textural relationships among gold, selenides, platinum group minerals, and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 80 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12684 (2016); Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Quartz
Formula: SiO2
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Sperrylite
Formula: PtAs2
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Stibiopalladinite
Formula: Pd5Sb2
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006): "Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil", Mineralogical Magazine 70, 123-130; Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
'Unnamed (Pb-Bi Selenide)'
Formula: Pb-Bi-Se
Reference: Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.
Uraninite
Formula: UO2
Reference: Menez, J.& Botelho, N.F. (2016): Ore characterization and textural relationships among gold, selenides, platinum group minerals, and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 80 (in press); http://forum.amiminerals.it/viewtopic.php?f=5&t=12684 (2016); Menez, J.; Botelho, N. F. (2017): Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine 81, 463-476.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Gold'1.AA.05Au
'Graphite'1.CB.05aC
'Platinum'1.AF.10Pt
Group 2 - Sulphides and Sulfosalts
'Bohdanowiczite'2.JA.20AgBiSe2
'Chalcopyrite'2.CB.10aCuFeS2
'Clausthalite'2.CD.10PbSe
'Ferroselite'2.EB.10aFeSe2
'Guanajuatite'2.DB.05Bi2Se3
'Isomertieite'2.AC.15aPd11Sb2As2
'Kalungaite' (TL)2.EB.25PdAsSe
'Krut'aite'2.EB.05aCuSe2
'Mertieite-II'2.AC.10bPd8Sb2.5As0.5
'Padmaite'2.EB.25PdBiSe
'Paraguanajuatite'2.DC.05Bi2Se3
'Pyrite'2.EB.05aFeS2
'Sperrylite'2.EB.05aPtAs2
'Stibiopalladinite'2.AC.20aPd5Sb2
Group 4 - Oxides and Hydroxides
'Magnetite'4.BB.05Fe2+Fe3+2O4
'Quartz'4.DA.05SiO2
'Uraninite'4.DL.05UO2
Group 9 - Silicates
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Biotite'-
'Mertieite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Unnamed (Pb-Bi Selenide)'-Pb-Bi-Se

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Platinum Group Metals and Alloys
Platinum1.2.1.1Pt
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 5:2
Stibiopalladinite2.3.3.1Pd5Sb2
AmXp, with m:p = 1:1
Clausthalite2.8.1.2PbSe
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Guanajuatite2.11.2.4Bi2Se3
Paraguanajuatite2.11.7.4Bi2Se3
AmBnXp, with (m+n):p = 1:2
Ferroselite2.12.2.2FeSe2
Krut'aite2.12.1.8CuSe2
Padmaite2.12.3.10PdBiSe
Pyrite2.12.1.1FeS2
Sperrylite2.12.1.13PtAs2
Miscellaneous
Isomertieite2.16.2.1Pd11Sb2As2
Mertieite-II2.16.3.1Pd8Sb2.5As0.5
Group 3 - SULFOSALTS
ø = 2
Bohdanowiczite3.7.1.2AgBiSe2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Biotite'-
Kalungaite (TL)-PdAsSe
'Mertieite'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Unnamed (Pb-Bi Selenide)'-Pb-Bi-Se

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C GraphiteC
OOxygen
O MagnetiteFe2+Fe23+O4
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O UraniniteUO2
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Fe ChalcopyriteCuFeS2
Fe FerroseliteFeSe2
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu Krut'aiteCuSe2
AsArsenic
As IsomertieitePd11Sb2As2
As KalungaitePdAsSe
As Mertieite-IIPd8Sb2.5As0.5
As SperrylitePtAs2
SeSelenium
Se BohdanowicziteAgBiSe2
Se ClausthalitePbSe
Se FerroseliteFeSe2
Se GuanajuatiteBi2Se3
Se KalungaitePdAsSe
Se Krut'aiteCuSe2
Se PadmaitePdBiSe
Se ParaguanajuatiteBi2Se3
Se Unnamed (Pb-Bi Selenide)Pb-Bi-Se
PdPalladium
Pd IsomertieitePd11Sb2As2
Pd KalungaitePdAsSe
Pd Mertieite-IIPd8Sb2.5As0.5
Pd PadmaitePdBiSe
Pd StibiopalladinitePd5Sb2
AgSilver
Ag BohdanowicziteAgBiSe2
SbAntimony
Sb IsomertieitePd11Sb2As2
Sb Mertieite-IIPd8Sb2.5As0.5
Sb StibiopalladinitePd5Sb2
PtPlatinum
Pt PlatinumPt
Pt SperrylitePtAs2
AuGold
Au GoldAu
PbLead
Pb ClausthalitePbSe
Pb Unnamed (Pb-Bi Selenide)Pb-Bi-Se
BiBismuth
Bi BohdanowicziteAgBiSe2
Bi GuanajuatiteBi2Se3
Bi PadmaitePdBiSe
Bi ParaguanajuatiteBi2Se3
Bi Unnamed (Pb-Bi Selenide)Pb-Bi-Se
UUranium
U UraniniteUO2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Rhyacian
2050 - 2300 Ma



ID: 2315854
Aurumina, monzogranito Fácies

Age: Rhyacian (2050 - 2300 Ma)

Lithology: Biotite monzogranite, biotite syenogranite, muscovite-biotite syenogranite

Reference: Geological Survey of Brazil. State Geological Maps of Brazil. CPRM - Geobank. [43]

Archean
2500 - 4000 Ma



ID: 3186984
Archean crystalline metamorphic rocks

Age: Archean (2500 - 4000 Ma)

Lithology: Medium-high grade orthogneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Botelho, N.F., Moura, M.A., Peterson, R.C., Stanley, C.J., Silva, D.V.G. (2006) Kalungaite, PdAsSe, a new platinum-group mineral from the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil. Mineralogical Magazine: 70: 123-130.
Menez, J.; Botelho, N. F. (2017) Ore characterization and textural relationships among gold, selenides, platinum-group minerals and uraninite at the granite-related Buraco do Ouro gold mine, Cavalcante, Central Brazil. Mineralogical Magazine: 81: 463-476.


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