Cacheuta Mine, Cerro de Cacheuta, Sierra de Cacheuta, Cacheuta District, Luján de Cuyo department, Mendoza Province, Argentinai
Regional Level Types | |
---|---|
Cacheuta Mine | Mine |
Cerro de Cacheuta | Mountain |
Sierra de Cacheuta | Sierra |
Cacheuta District | District |
Luján de Cuyo department | Department |
Mendoza Province | Province |
Argentina | Country |
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Latitude & Longitude (WGS84):
33° South , 69° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Deposit first discovered:
1861 (approx.)
Köppen climate type:
Mindat Locality ID:
41
Long-form identifier:
mindat:1:2:41:6
GUID (UUID V4):
2abf6966-76de-4907-8d34-f6d1828de7a3
In the 1860s, the selenium mineralization was discovered in calcitic veinlets in porphyry forming a fine-grained mixture of clausthalite, naumannite, klockmannite, umangite, berzelianite, eucairite, tyrrellite and eskebornite.
Located at an altitude of about 1580 m above sea level.
Grundmann, G., Förster, H.J. (2018):
Nowadays, the location of the Sierra de Cacheuta Se occurrence is not precisely known; it has never been recovered. It was discovered sometime between 1860–1862. In the earliest and most detailed description of the area, the following information was provided: The occurrence encompasses several small selenide veinlets ranging in thickness from 1 to 2 mm to a maximum of 4 cm. The main selenium minerals were clausthalite and copper selenides. Near the surface, the ore veins contained Ag contents of up to 21 wt %. At depth, the Ag content decreased rapidly down to almost zero at only 12 m depth — the reason the mining activity had been terminated.
Geographically, the occurrence was located on the right bank of the Rio de Mendoza, where it came from the Sierra de Cacheuta in the West [9,10]. The mines were on the southern slope of the mountain range, a few leguas (miles) from the river. The slope was built up by andesitic to trachytic rocks, which had vesicular cavities locally filled with calcite or agate. The volcanic host rocks varied in texture from stratified to massive and were irregularly jointed. Stelzner examined the post-volcanic selenium veinlets in several small galleries, which were mined at different heights on the slope. On the surrounding dumps, he found only two little veinlet fragments, consisting mainly of granular ankerite and minor ore minerals. At the bottom of the mountain range, sandy, calcareous, or marly sediments occurred, with intercalations of bituminous shale and local asphalt enrichment. Brackebusch (1893) also mentioned bitumen (“Erdpech” in German) as a constituent of the Se veins. Ramdohr (1975) identified the following main ore minerals: klockmannite, clausthalite, eucairite, umangite, naumannite, accessory ferroselite, and two unspecified cobalt selenides. The sulfides were chalcopyrite and pyrite.
Geographically, the occurrence was located on the right bank of the Rio de Mendoza, where it came from the Sierra de Cacheuta in the West [9,10]. The mines were on the southern slope of the mountain range, a few leguas (miles) from the river. The slope was built up by andesitic to trachytic rocks, which had vesicular cavities locally filled with calcite or agate. The volcanic host rocks varied in texture from stratified to massive and were irregularly jointed. Stelzner examined the post-volcanic selenium veinlets in several small galleries, which were mined at different heights on the slope. On the surrounding dumps, he found only two little veinlet fragments, consisting mainly of granular ankerite and minor ore minerals. At the bottom of the mountain range, sandy, calcareous, or marly sediments occurred, with intercalations of bituminous shale and local asphalt enrichment. Brackebusch (1893) also mentioned bitumen (“Erdpech” in German) as a constituent of the Se veins. Ramdohr (1975) identified the following main ore minerals: klockmannite, clausthalite, eucairite, umangite, naumannite, accessory ferroselite, and two unspecified cobalt selenides. The sulfides were chalcopyrite and pyrite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
36 valid minerals. 2 (TL) - type locality of valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
ⓘ Achávalite (TL) Formula: FeSe Type Locality: References: |
ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 |
ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
ⓘ Baryte Formula: BaSO4 |
ⓘ Berzelianite Formula: Cu2-xSe (x ≈ 0.12) |
ⓘ Calcite Formula: CaCO3 |
ⓘ Cerussite Formula: PbCO3 References: |
ⓘ Chalcocite Formula: Cu2S |
ⓘ Chalcomenite Formula: CuSeO3 · 2H2O References: |
ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ Clausthalite Formula: PbSe References: |
ⓘ Cobaltomenite Formula: CoSeO3 · 2H2O References: |
ⓘ Covellite Formula: CuS |
ⓘ Dolomite Formula: CaMg(CO3)2 |
ⓘ Eskebornite Formula: CuFeSe2 |
ⓘ Eucairite Formula: AgCuSe |
ⓘ Ferroselite Formula: FeSe2 |
ⓘ Goethite Formula: α-Fe3+O(OH) |
ⓘ Hematite Formula: Fe2O3 |
ⓘ Klockmannite Formula: CuSe References: |
ⓘ Krut'aite Formula: CuSe2 |
ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
ⓘ Magnetite var. Titanium-bearing Magnetite Formula: Fe2+(Fe3+,Ti)2O4 |
ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
ⓘ Mandarinoite ? Formula: Fe3+2(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0) |
ⓘ Mereheadite ? Formula: Pb47Cl25(OH)13O24(CO3)(BO3)2 |
ⓘ Molybdomenite (TL) Formula: PbSeO3 Type Locality: References: |
ⓘ Naumannite Formula: Ag2Se References: |
ⓘ Olsacherite Formula: Pb2(Se6+O4)(SO4) References: |
ⓘ Orlandiite ? Formula: Pb3(SeO3)(Cl,OH)4 · H2O |
ⓘ Petříčekite Formula: CuSe2 |
ⓘ 'Petroleum var. Bitumen' |
ⓘ Scotlandite ? Formula: PbSO3 |
ⓘ Selenium Formula: Se |
ⓘ Siderite Formula: FeCO3 |
ⓘ Trogtalite Formula: CoSe2 |
ⓘ Tyrrellite Formula: Cu(Co3+,Ni3+)2Se4 |
ⓘ Umangite Formula: Cu3Se2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Selenium | 1.CC.10 | Se |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Chalcocite | 2.BA.05 | Cu2S |
ⓘ | Berzelianite | 2.BA.20 | Cu2-xSe (x ≈ 0.12) |
ⓘ | Umangite | 2.BA.25 | Cu3Se2 |
ⓘ | Eucairite | 2.BA.50 | AgCuSe |
ⓘ | Naumannite | 2.BA.55 | Ag2Se |
ⓘ | Covellite | 2.CA.05a | CuS |
ⓘ | Klockmannite | 2.CA.05b | CuSe |
ⓘ | Eskebornite | 2.CB.10a | CuFeSe2 |
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Achávalite (TL) | 2.CC.05 | FeSe |
ⓘ | Clausthalite | 2.CD.10 | PbSe |
ⓘ | Tyrrellite | 2.DA.05 | Cu(Co3+,Ni3+)2Se4 |
ⓘ | Krut'aite | 2.EB.05a | CuSe2 |
ⓘ | Trogtalite | 2.EB.05a | CoSe2 |
ⓘ | Petříčekite | 2.EB.10a | CuSe2 |
ⓘ | Ferroselite | 2.EB.10a | FeSe2 |
Group 3 - Halides | |||
ⓘ | Mereheadite ? | 3.DC.45 | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
ⓘ | Magnetite var. Titanium-bearing Magnetite | 4.BB.05 | Fe2+(Fe3+,Ti)2O4 |
ⓘ | 4.BB.05 | Fe2+Fe3+2O4 | |
ⓘ | Hematite | 4.CB.05 | Fe2O3 |
ⓘ | Scotlandite ? | 4.JE.20 | PbSO3 |
ⓘ | Molybdomenite (TL) | 4.JF.05 | PbSeO3 |
ⓘ | Chalcomenite | 4.JH.05 | CuSeO3 · 2H2O |
ⓘ | Cobaltomenite | 4.JH.10 | CoSeO3 · 2H2O |
ⓘ | Mandarinoite ? | 4.JH.15 | Fe3+2(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0) |
ⓘ | Orlandiite ? | 4.JH.20 | Pb3(SeO3)(Cl,OH)4 · H2O |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
ⓘ | Siderite | 5.AB.05 | FeCO3 |
ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
ⓘ | Cerussite | 5.AB.15 | PbCO3 |
ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
ⓘ | Olsacherite | 7.AD.35 | Pb2(Se6+O4)(SO4) |
ⓘ | Baryte | 7.AD.35 | BaSO4 |
Unclassified | |||
ⓘ | 'Petroleum var. Bitumen' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
H | ⓘ Chalcomenite | CuSeO3 · 2H2O |
H | ⓘ Cobaltomenite | CoSeO3 · 2H2O |
H | ⓘ Goethite | α-Fe3+O(OH) |
H | ⓘ Malachite | Cu2(CO3)(OH)2 |
H | ⓘ Mandarinoite | Fe23+(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0) |
H | ⓘ Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
H | ⓘ Orlandiite | Pb3(SeO3)(Cl,OH)4 · H2O |
B | Boron | |
B | ⓘ Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
C | Carbon | |
C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
C | ⓘ Calcite | CaCO3 |
C | ⓘ Cerussite | PbCO3 |
C | ⓘ Dolomite | CaMg(CO3)2 |
C | ⓘ Malachite | Cu2(CO3)(OH)2 |
C | ⓘ Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
C | ⓘ Siderite | FeCO3 |
O | Oxygen | |
O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
O | ⓘ Baryte | BaSO4 |
O | ⓘ Calcite | CaCO3 |
O | ⓘ Cerussite | PbCO3 |
O | ⓘ Chalcomenite | CuSeO3 · 2H2O |
O | ⓘ Cobaltomenite | CoSeO3 · 2H2O |
O | ⓘ Dolomite | CaMg(CO3)2 |
O | ⓘ Goethite | α-Fe3+O(OH) |
O | ⓘ Hematite | Fe2O3 |
O | ⓘ Magnetite | Fe2+Fe23+O4 |
O | ⓘ Malachite | Cu2(CO3)(OH)2 |
O | ⓘ Mandarinoite | Fe23+(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0) |
O | ⓘ Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
O | ⓘ Molybdomenite | PbSeO3 |
O | ⓘ Olsacherite | Pb2(Se6+O4)(SO4) |
O | ⓘ Scotlandite | PbSO3 |
O | ⓘ Siderite | FeCO3 |
O | ⓘ Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
O | ⓘ Orlandiite | Pb3(SeO3)(Cl,OH)4 · H2O |
Mg | Magnesium | |
Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Mg | ⓘ Dolomite | CaMg(CO3)2 |
S | Sulfur | |
S | ⓘ Baryte | BaSO4 |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Chalcocite | Cu2S |
S | ⓘ Covellite | CuS |
S | ⓘ Olsacherite | Pb2(Se6+O4)(SO4) |
S | ⓘ Scotlandite | PbSO3 |
Cl | Chlorine | |
Cl | ⓘ Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
Cl | ⓘ Orlandiite | Pb3(SeO3)(Cl,OH)4 · H2O |
Ca | Calcium | |
Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Ca | ⓘ Calcite | CaCO3 |
Ca | ⓘ Dolomite | CaMg(CO3)2 |
Ti | Titanium | |
Ti | ⓘ Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
Fe | Iron | |
Fe | ⓘ Achávalite | FeSe |
Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Eskebornite | CuFeSe2 |
Fe | ⓘ Ferroselite | FeSe2 |
Fe | ⓘ Goethite | α-Fe3+O(OH) |
Fe | ⓘ Hematite | Fe2O3 |
Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Fe | ⓘ Mandarinoite | Fe23+(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0) |
Fe | ⓘ Siderite | FeCO3 |
Fe | ⓘ Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
Co | Cobalt | |
Co | ⓘ Cobaltomenite | CoSeO3 · 2H2O |
Co | ⓘ Trogtalite | CoSe2 |
Co | ⓘ Tyrrellite | Cu(Co3+,Ni3+)2Se4 |
Ni | Nickel | |
Ni | ⓘ Tyrrellite | Cu(Co3+,Ni3+)2Se4 |
Cu | Copper | |
Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
Cu | ⓘ Berzelianite | Cu2-xSe (x ≈ 0.12) |
Cu | ⓘ Chalcomenite | CuSeO3 · 2H2O |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Cu | ⓘ Chalcocite | Cu2S |
Cu | ⓘ Covellite | CuS |
Cu | ⓘ Eskebornite | CuFeSe2 |
Cu | ⓘ Eucairite | AgCuSe |
Cu | ⓘ Klockmannite | CuSe |
Cu | ⓘ Krut'aite | CuSe2 |
Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Cu | ⓘ Tyrrellite | Cu(Co3+,Ni3+)2Se4 |
Cu | ⓘ Umangite | Cu3Se2 |
Cu | ⓘ Petříčekite | CuSe2 |
Se | Selenium | |
Se | ⓘ Achávalite | FeSe |
Se | ⓘ Berzelianite | Cu2-xSe (x ≈ 0.12) |
Se | ⓘ Chalcomenite | CuSeO3 · 2H2O |
Se | ⓘ Clausthalite | PbSe |
Se | ⓘ Cobaltomenite | CoSeO3 · 2H2O |
Se | ⓘ Eskebornite | CuFeSe2 |
Se | ⓘ Eucairite | AgCuSe |
Se | ⓘ Ferroselite | FeSe2 |
Se | ⓘ Klockmannite | CuSe |
Se | ⓘ Krut'aite | CuSe2 |
Se | ⓘ Mandarinoite | Fe23+(Se4+O3)3 · (6-x)H2O (x = 0.0-1.0) |
Se | ⓘ Molybdomenite | PbSeO3 |
Se | ⓘ Naumannite | Ag2Se |
Se | ⓘ Olsacherite | Pb2(Se6+O4)(SO4) |
Se | ⓘ Selenium | Se |
Se | ⓘ Trogtalite | CoSe2 |
Se | ⓘ Tyrrellite | Cu(Co3+,Ni3+)2Se4 |
Se | ⓘ Umangite | Cu3Se2 |
Se | ⓘ Orlandiite | Pb3(SeO3)(Cl,OH)4 · H2O |
Se | ⓘ Petříčekite | CuSe2 |
Ag | Silver | |
Ag | ⓘ Eucairite | AgCuSe |
Ag | ⓘ Naumannite | Ag2Se |
Ba | Barium | |
Ba | ⓘ Baryte | BaSO4 |
Pb | Lead | |
Pb | ⓘ Cerussite | PbCO3 |
Pb | ⓘ Clausthalite | PbSe |
Pb | ⓘ Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
Pb | ⓘ Molybdomenite | PbSeO3 |
Pb | ⓘ Olsacherite | Pb2(Se6+O4)(SO4) |
Pb | ⓘ Scotlandite | PbSO3 |
Pb | ⓘ Orlandiite | Pb3(SeO3)(Cl,OH)4 · H2O |
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