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Chojlla Mine, Yanacachi District, Sud Yungas Province, La Paz, Boliviai
Regional Level Types
Chojlla MineMine
Yanacachi DistrictDistrict
Sud Yungas ProvinceProvince
La PazDepartment
BoliviaCountry

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Key
Latitude & Longitude (WGS84):
16° 23' South , 67° 45' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Coripata2,107 (2012)18.5km
Coroico2,361 (2014)21.2km
Chulumani2,952 (2014)23.7km
La Paz812,799 (2012)44.6km


A tin-tungsten property owned by International Mining Co.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


21 valid minerals.

Detailed Mineral List:

'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Arsenopyrite
Formula: FeAsS
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Bismuthinite
Formula: Bi2S3
Reference: Werner, A.B.T., Sinclair, W.D., and Amey, E.B. (1998): US Geological Survey Circular 930-O.
Cassiterite
Formula: SnO2
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz); Min Rec (1977) 8:52-57
Chalcopyrite
Formula: CuFeS2
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Werner, A.B.T., Sinclair, W.D., and Amey, E.B. (1998): US Geological Survey Circular 930-O.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Ferberite
Formula: FeWO4
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Fluorite
Formula: CaF2
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Galena
Formula: PbS
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Hematite
Formula: Fe2O3
Reference: Werner, A.B.T., Sinclair, W.D., and Amey, E.B. (1998): US Geological Survey Circular 930-O.
Hübnerite
Formula: MnWO4
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
'K Feldspar'
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
'Lepidolite'
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Molybdenite
Formula: MoS2
Reference: Werner, A.B.T., Sinclair, W.D., and Amey, E.B. (1998): US Geological Survey Circular 930-O.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Pyrite
Formula: FeS2
Reference: Ahlfeld, F. & Schneider-Scherbina, A. (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia.
Pyrrhotite
Formula: Fe1-xS
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Quartz
Formula: SiO2
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Sanmartinite
Formula: (Zn,Fe)WO4
Reference: Ahlfeld, F. and Schneider-Scherbina, A. (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia. Ministerio de Minas y Petróleo, La Paz, Boletín No. 5 (Especial), p 69.
Scheelite
Formula: Ca(WO4)
Reference: Ahlfeld, F. & Schneider-Scherbina, A. (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia.
Siderite
Formula: FeCO3
Reference: Werner, A.B.T., Sinclair, W.D., and Amey, E.B. (1998): US Geological Survey Circular 930-O.
Sphalerite
Formula: ZnS
Reference: Ahlfeld, F. & Schneider-Scherbina, A. (1964) Los Yacimientos Minerales y de Hidrocarburos de Bolivia.
Topaz
Formula: Al2(SiO4)(F,OH)2
Description: in apatite-bearing veins in granite country rock
Reference: Salomon Rivas & Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes. (Santa Cruz)
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Osvaldo R. Arce Burgoa (2007) Guia a los Yacimientos Metaliferos de Bolivia. (Minera San Cristobal S.A. & Empresa Minera Unificada S.A., La Paz)
Tungstite
Formula: WO3 · H2O

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Bismuthinite2.DB.05Bi2S3
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe1-xS
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Ferberite4.DB.30FeWO4
Hematite4.CB.05Fe2O3
Hübnerite4.DB.30MnWO4
Quartz4.DA.05SiO2
Sanmartinite4.DB.30(Zn,Fe)WO4
Tungstite4.FJ.10WO3 · H2O
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Topaz9.AF.35Al2(SiO4)(F,OH)2
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Columbite-(Fe)-Columbite-(Mn) Series'-
'K Feldspar'-
'Lepidolite'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe1-xS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Cassiterite4.4.1.5SnO2
AX3
Tungstite4.5.2.1WO3 · H2O
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Ferberite48.1.1.2FeWO4
Hübnerite48.1.1.1MnWO4
Sanmartinite48.1.1.3(Zn,Fe)WO4
Scheelite48.1.2.1Ca(WO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
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, Mixtures, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Columbite-(Fe)-Columbite-(Mn) Series'-
'K Feldspar'-
'Lepidolite'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H TungstiteWO3 · H2O
H ApatiteCa5(PO4)3(Cl/F/OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H TopazAl2(SiO4)(F,OH)2
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C SideriteFeCO3
OOxygen
O CassiteriteSnO2
O MuscoviteKAl2(AlSi3O10)(OH)2
O FerberiteFeWO4
O QuartzSiO2
O TungstiteWO3 · H2O
O ApatiteCa5(PO4)3(Cl/F/OH)
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O TopazAl2(SiO4)(F,OH)2
O HübneriteMnWO4
O ScheeliteCa(WO4)
O HematiteFe2O3
O SideriteFeCO3
O Sanmartinite(Zn,Fe)WO4
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
F FluoriteCaF2
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
F TopazAl2(SiO4)(F,OH)2
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al TopazAl2(SiO4)(F,OH)2
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si TopazAl2(SiO4)(F,OH)2
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S ArsenopyriteFeAsS
S GalenaPbS
S PyrrhotiteFe1-xS
S ChalcopyriteCuFeS2
S PyriteFeS2
S SphaleriteZnS
S BismuthiniteBi2S3
S MolybdeniteMoS2
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
CaCalcium
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca FluoriteCaF2
Ca ScheeliteCa(WO4)
MnManganese
Mn HübneriteMnWO4
FeIron
Fe ArsenopyriteFeAsS
Fe FerberiteFeWO4
Fe PyrrhotiteFe1-xS
Fe ChalcopyriteCuFeS2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe PyriteFeS2
Fe HematiteFe2O3
Fe SideriteFeCO3
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
Zn Sanmartinite(Zn,Fe)WO4
AsArsenic
As ArsenopyriteFeAsS
MoMolybdenum
Mo MolybdeniteMoS2
SnTin
Sn CassiteriteSnO2
WTungsten
W FerberiteFeWO4
W TungstiteWO3 · H2O
W HübneriteMnWO4
W ScheeliteCa(WO4)
W Sanmartinite(Zn,Fe)WO4
PbLead
Pb GalenaPbS
BiBismuth
Bi BismuthiniteBi2S3

Geochronology

Mineralization age: Late Triassic : 211 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Mesozoic
  Triassic
   Late Triassic
ⓘ Chalcopyrite211 Ma

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Mining Annual Review(1985):338.
Thorn, P. G. (1988). Fluid inclusion and stable isotope studies at the Chicote tungsten deposit, Bolivia. Economic Geology, 83(1), 62-68.
Werner, A.B.T., Sinclair, W.D., and Amey, E.B. (1998): International Strategic Mineral Issues Summary Report - Tungsten. US Geological Survey Circular 930-O.

Other Regions, Features and Areas containing this locality

Altiplano PlateTectonic Plate
South AmericaContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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