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Iroco mine (Kori Chaka), Oruro city, Cercado Province, Oruro, Boliviai
Regional Level Types
Iroco mine (Kori Chaka)Mine
Oruro cityCity
Cercado ProvinceProvince
OruroDepartment
BoliviaCountry

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Latitude & Longitude (WGS84):
17° 58' 0'' South , 67° 9' 25'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Oruro208,684 (2012)2.0km
Machacamarca2,044 (2013)27.0km
Huanuni15,492 (2013)49.3km


Small active underground gold mine reaching about 60 m depth. About 4 km west of town; 3,740 meters above sea level. The Inti Raymi company also works open cut benches in the hillside.

Regions containing this locality

South AmericaContinent
Altiplano PlateTectonic Plate
Andean tin province, South America

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Detailed Mineral List:

Arseniosiderite
Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O
Reference: Alfredo Petrov collection
Arsenopyrite
Formula: FeAsS
Reference: Alfredo Petrov collection
Chalcopyrite
Formula: CuFeS2
Reference: USGS Bulletin # 1975, p. 269.
'Chlorite Group'
Reference: Alfredo Petrov collection
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(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)
Goethite
Formula: α-Fe3+O(OH)
Reference: Alfredo Petrov collection
Gold
Formula: Au
Reference: Alfredo Petrov collection
Hematite
Formula: Fe2O3
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)
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
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)
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)
Muscovite var: Sericite
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)
Opal
Formula: SiO2 · nH2O
Reference: USGS Bulletin # 1975, p. 269.
Pyrite
Formula: FeS2
Reference: Alfredo Petrov collection
Quartz
Formula: SiO2
Reference: Alfredo Petrov collection
Quartz var: Chalcedony
Formula: SiO2
Reference: USGS Bulletin # 1975, p. 269.
Rutile
Formula: TiO2
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)
Scorodite
Formula: Fe3+AsO4 · 2H2O
Reference: Alfredo Petrov collection
Siderite
Formula: FeCO3
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)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Jarosite7.BC.10KFe3+ 3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
Arseniosiderite8.DH.30Ca2Fe3+3(AsO4)3O2 · 3H2O
Scorodite8.CD.10Fe3+AsO4 · 2H2O
Group 9 - Silicates
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

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
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
(AB)5(XO4)2·xH2O
Scorodite40.4.1.3Fe3+AsO4 · 2H2O
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)3Zq·xH2O
Arseniosiderite42.8.4.3Ca2Fe3+3(AsO4)3O2 · 3H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
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
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
Quartz
var: Chalcedony
-SiO2

List of minerals for each chemical element

HHydrogen
H ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
H Goethiteα-Fe3+O(OH)
H ScoroditeFe3+AsO4 · 2H2O
H OpalSiO2 · nH2O
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H JarositeKFe3+ 3(SO4)2(OH)6
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C SideriteFeCO3
OOxygen
O QuartzSiO2
O ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
O Goethiteα-Fe3+O(OH)
O ScoroditeFe3+AsO4 · 2H2O
O Quartz (var: Chalcedony)SiO2
O OpalSiO2 · nH2O
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O JarositeKFe3+ 3(SO4)2(OH)6
O HematiteFe2O3
O SideriteFeCO3
O RutileTiO2
O MuscoviteKAl2(AlSi3O10)(OH)2
AlAluminium
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si Quartz (var: Chalcedony)SiO2
Si OpalSiO2 · nH2O
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S PyriteFeS2
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S JarositeKFe3+ 3(SO4)2(OH)6
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K JarositeKFe3+ 3(SO4)2(OH)6
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
TiTitanium
Ti RutileTiO2
FeIron
Fe PyriteFeS2
Fe ArsenopyriteFeAsS
Fe ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
Fe Goethiteα-Fe3+O(OH)
Fe ScoroditeFe3+AsO4 · 2H2O
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe HematiteFe2O3
Fe SideriteFeCO3
CuCopper
Cu ChalcopyriteCuFeS2
AsArsenic
As ArsenopyriteFeAsS
As ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
As ScoroditeFe3+AsO4 · 2H2O
AuGold
Au GoldAu

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

Quaternary
0 - 2.588 Ma



ID: 3186155
Cenozoic sedimentary rocks

Age: Pleistocene (0 - 2.588 Ma)

Lithology: Sedimentary rocks

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


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