Buraco do Ouro mine, Cavalcante, Goiás, Brazil (original) (raw)

ⓘ Alunite

Formula: KAl3(SO4)2(OH)6

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Amarillite

Formula: NaFe(SO4)2 · 6H2O

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Arsenopyrite

Formula: FeAsS

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Baryte

Formula: BaSO4

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Beyerite

Formula: Ca(BiO)2(CO3)2

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ 'Biotite'

Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

ⓘ Bismuthinite

Formula: Bi2S3

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Bismutite

Formula: (BiO)2CO3

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Bohdanowiczite

Formula: AgBiSe2

References:

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

ⓘ Brochantite

Formula: Cu4(SO4)(OH)6

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Cannonite

Formula: Bi2(SO4)O(OH)2

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Chalcopyrite

Formula: CuFeS2

References:

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

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Clausthalite

Formula: PbSe

References:

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

ⓘ Covellite

Formula: CuS

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Epidote

Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Ferroselite

Formula: FeSe2

ⓘ Goethite

Formula: α-Fe3+O(OH)

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Gold

Formula: Au

References:

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

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Gold var. Electrum

Formula: (Au,Ag)

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Graphite

Formula: C

ⓘ Guanajuatite

Formula: Bi2Se3

References:

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

ⓘ Hematite

Formula: Fe2O3

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Hollandite

Formula: Ba(Mn4+6Mn3+2)O16

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Iodargyrite

Formula: AgI

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Isomertieite

Formula: Pd11Sb2As2

ⓘ Jarosite

Formula: KFe3+3(SO4)2(OH)6

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Kalungaite (TL)

Formula: PdAsSe

Type Locality:

References:

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

ⓘ Krut'aite

Formula: CuSe2

ⓘ Lithiophorite

Formula: (Al,Li)MnO2(OH)2

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Magnetite

Formula: Fe2+Fe3+2O4

References:

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

ⓘ Melanterite

Formula: Fe2+(H2O)6SO4 · H2O

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Mertieite

Formula: Pd8Sb2.5As0.5

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

References:

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

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Padmaite

Formula: PdBiSe

References:

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

ⓘ Paraguanajuatite

Formula: Bi2Se3

ⓘ Platinum

Formula: Pt

ⓘ Pyrite

Formula: FeS2

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Pyrrhotite

Formula: Fe1-xS

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Quartz

Formula: SiO2

References:

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

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Sperrylite

Formula: PtAs2

References:

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

ⓘ Stibiopalladinite

Formula: Pd5Sb2

References:

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 D3G6 (T6O18)(BO3)3X3Z

References:

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

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ 'Unnamed (Pb-Bi Selenide)'

Formula: Pb-Bi-Se

ⓘ Uraninite

Formula: UO2

ⓘ Vauxite

Formula: Fe2+Al2(PO4)2(OH)2 · 6H2O

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.

ⓘ Waylandite

Formula: BiAl3(PO4)2(OH)6

References:

Pires, G. L. C., Renac, C., Bongiolo, E. M., & Neumann, R. (2020). Gossan mineralogy, textures, and gold enrichment over the Au (As, Bi, Ag) deposit in the Buracão Area (Brasília Fold Belt, Brazil): Implications for gold prospecting in weathering profiles. Journal of Geochemical Exploration, 218, 106615.