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Manuel-Mercedes open pit, Cala Mines, Cala, Huelva, Andalusia, Spain

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 37° North , 6° West (est.)
Margin of Error:~9km
Other regions containing this locality:Iberian Peninsula
Locality type:Pit
Köppen climate type:Csa : Hot-summer Mediterranean climate
Name(s) in local language(s):Corta Manuel-Mercedes, Minas de Cala, Cala, Huelva, Andalucia, España


From a geological point of view, the deposit of the Cala Mine is located in the south flank of the (antiform) Olivenza-Monesterio, inside of the zone Ossa-Morena. In this area, Palaeozoic rocks were affected by Hercynian tectonics. The granitic intrusions were accompanied by contact metamorphism (skarn formation) with important deposits of magnetite.

Cala is included in Sierra de Aracena range, a part of Sierra Morena range.

Recent analysis (XRD) have confirmed again the presence of ferropargasite in this locality (green sprays as seen in the pictures). It must be said that there is no a complete certainty because with complex amphiboles like these further analysis would be neccessary (Polarised-light microscopy and EPMA).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


27 valid minerals.

Detailed Mineral List:

'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Martins da Pedra collection
'Amphibole Supergroup var: Uralite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Martins da Pedra collection
Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Martins da Pedra collection; Econ Geol (1981) 76:719-727
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Reference: http://www.foro-minerales.com/forum/viewtopic.php?p=90038#90038
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
Calcite
Formula: CaCO3
Reference: Martins da Pedra collection; Econ Geol (1981) 76:719-727
Chalcopyrite
Formula: CuFeS2
Reference: Econ Geol (1981) 76:719-727
'Chlorite Group'
Reference: Econ Geol (1981) 76:719-727
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
Cuprite
Formula: Cu2O
Reference: http://www.foro-minerales.com/forum/viewtopic.php?p=106022#106022
Diopside
Formula: CaMgSi2O6
Reference: Econ Geol (1981) 76:719-727
Dolomite
Formula: CaMg(CO3)2
Reference: Econ Geol (1981) 76:719-727
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
Ferro-pargasite
Formula: {Na}{Ca2}{Fe2+4Al}(Al2Si6O22)(OH)2
Description: Recent analysis (XRD) have confirmed again the presence of ferropargasite in this locality (green sprays as seen in the pictures). It must be said that there is no a complete certainty because with complex amphiboles like these further analysis would be neccessary (Polarised-light microscopy and EPMA). Analysis made by Juan Miguel Jiménez (see http://www.foro-minerales.com/forum/viewtopic.php?p=77451)
Reference: García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Calvo, M. (2018). Minerales y Minas de España. Vol. IX. Silicatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 767 págs.
Gersdorffite
Formula: NiAsS
Reference: Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.
Glaucodot
Formula: (Co0.50Fe0.50)AsS
Reference: Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.
Goethite
Formula: α-Fe3+O(OH)
Reference: Martins da Pedra collection
Hematite
Formula: Fe2O3
Reference: Econ Geol (1981) 76:719-727
Hörnesite
Formula: Mg3(AsO4)2 · 8H2O
Reference: Cesar Menor-Salvan
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Martins da Pedra collection; Econ Geol (1981) 76:719-727
Malachite
Formula: Cu2(CO3)(OH)2
Reference: García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
Marcasite
Formula: FeS2
Reference: Econ Geol (1981) 76:719-727
Millerite
Formula: NiS
Reference: Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.
Nickeline
Formula: NiAs
Reference: Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.
Nickelskutterudite
Formula: (Ni,Co,Fe)As3
Reference: García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
Pyrite
Formula: FeS2
Reference: Econ Geol (1981) 76:719-727
Pyrrhotite
Formula: Fe7S8
Reference: Econ Geol (1981) 76:719-727
Quartz
Formula: SiO2
Reference: Calvo, M. (2016). Minerales y Minas de España. Vol. VIII. Cuarzo y otros minerales de la sílice. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 399 págs.
Skutterudite
Formula: CoAs3
Reference: Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.
Titanite
Formula: CaTi(SiO4)O
Reference: Econ Geol (1981) 76:719-727

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Gersdorffite'2.EB.25NiAsS
'Glaucodot'2.EB.10c(Co0.50Fe0.50)AsS
'Marcasite'2.EB.10aFeS2
'Millerite'2.CC.20NiS
'Nickeline'2.CC.05NiAs
'Nickelskutterudite'2.EC.05(Ni,Co,Fe)As3
'Pyrite'2.EB.05aFeS2
'Pyrrhotite'2.CC.10Fe7S8
'Skutterudite'2.EC.05CoAs3
Group 4 - Oxides and Hydroxides
'Cuprite'4.AA.10Cu2O
'Goethite'4.00.α-Fe3+O(OH)
'Hematite'4.CB.05Fe2O3
'Magnetite'4.BB.05Fe2+Fe3+2O4
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Azurite'5.BA.05Cu3(CO3)2(OH)2
'Calcite'5.AB.05CaCO3
'Dolomite'5.AB.10CaMg(CO3)2
'Malachite'5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
'Annabergite'8.CE.40Ni3(AsO4)2 · 8H2O
'Hörnesite'8.CE.40Mg3(AsO4)2 · 8H2O
Group 9 - Silicates
'Andradite'9.AD.25Ca3Fe3+2(SiO4)3
'Chrysocolla'9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
'Diopside'9.DA.15CaMgSi2O6
'Epidote'9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
'Ferro-pargasite'9.DE.15{Na}{Ca2}{Fe2+4Al}(Al2Si6O22)(OH)2
'Titanite'9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Uralite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Chlorite Group'-
'Garnet Group'-X3Z2(SiO4)3

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Millerite2.8.16.1NiS
Nickeline2.8.11.1NiAs
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Gersdorffite2.12.3.2NiAsS
Glaucodot2.12.6.1(Co0.50Fe0.50)AsS
Marcasite2.12.2.1FeS2
Nickelskutterudite2.12.17.2(Ni,Co,Fe)As3
Pyrite2.12.1.1FeS2
Skutterudite2.12.17.1CoAs3
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
Annabergite40.3.6.4Ni3(AsO4)2 · 8H2O
Hörnesite40.3.6.7Mg3(AsO4)2 · 8H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
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 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Uralite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Chlorite Group'-
Ferro-pargasite-{Na}{Ca2}{Fe2+4Al}(Al2Si6O22)(OH)2
'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H AnnabergiteNi3(AsO4)2 · 8H2O
H AzuriteCu3(CO3)2(OH)2
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
H Goethiteα-Fe3+O(OH)
H HörnesiteMg3(AsO4)2 · 8H2O
H MalachiteCu2(CO3)(OH)2
H Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CCarbon
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
OOxygen
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O AndraditeCa3Fe23+(SiO4)3
O AnnabergiteNi3(AsO4)2 · 8H2O
O AzuriteCu3(CO3)2(OH)2
O CalciteCaCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O CupriteCu2O
O DiopsideCaMgSi2O6
O DolomiteCaMg(CO3)2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
O Garnet GroupX3Z2(SiO4)3
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O HörnesiteMg3(AsO4)2 · 8H2O
O MagnetiteFe2+Fe23+O4
O MalachiteCu2(CO3)(OH)2
O QuartzSiO2
O TitaniteCaTi(SiO4)O
O Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FFluorine
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
MgMagnesium
Mg DiopsideCaMgSi2O6
Mg DolomiteCaMg(CO3)2
Mg HörnesiteMg3(AsO4)2 · 8H2O
AlAluminium
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
Al Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SiSilicon
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si AndraditeCa3Fe23+(SiO4)3
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si DiopsideCaMgSi2O6
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
Si Garnet GroupX3Z2(SiO4)3
Si QuartzSiO2
Si TitaniteCaTi(SiO4)O
Si Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SSulfur
S ChalcopyriteCuFeS2
S GersdorffiteNiAsS
S Glaucodot(Co0.50Fe0.50)AsS
S MarcasiteFeS2
S MilleriteNiS
S PyriteFeS2
S PyrrhotiteFe7S8
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Cl Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CaCalcium
Ca AndraditeCa3Fe23+(SiO4)3
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca DolomiteCaMg(CO3)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti TitaniteCaTi(SiO4)O
Ti Amphibole Supergroup (var: Uralite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Fe AndraditeCa3Fe23+(SiO4)3
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Ferro-pargasite{Na}{Ca2}{Fe42+Al}(Al2Si6O22)(OH)2
Fe Glaucodot(Co0.50Fe0.50)AsS
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe Nickelskutterudite(Ni,Co,Fe)As3
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
CoCobalt
Co Glaucodot(Co0.50Fe0.50)AsS
Co Nickelskutterudite(Ni,Co,Fe)As3
Co SkutteruditeCoAs3
NiNickel
Ni AnnabergiteNi3(AsO4)2 · 8H2O
Ni GersdorffiteNiAsS
Ni MilleriteNiS
Ni NickelineNiAs
Ni Nickelskutterudite(Ni,Co,Fe)As3
CuCopper
Cu AzuriteCu3(CO3)2(OH)2
Cu ChalcopyriteCuFeS2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CupriteCu2O
Cu MalachiteCu2(CO3)(OH)2
AsArsenic
As AnnabergiteNi3(AsO4)2 · 8H2O
As GersdorffiteNiAsS
As Glaucodot(Co0.50Fe0.50)AsS
As HörnesiteMg3(AsO4)2 · 8H2O
As NickelineNiAs
As Nickelskutterudite(Ni,Co,Fe)As3
As SkutteruditeCoAs3

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Econ Geol (1981) 76:719-727
- García, M., García, G. and Calvo, M. (2003) Minas de Cala. El hierro con cobre. Bocamina (12), 48-81
- Calvo, M. (2003) Minerales y Minas de España, Vol 2. Diputación Foral de Alava. 705 pages.
-Calvo, M. (2018). Minerales y Minas de España. Vol. IX. Silicatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 767 págs.


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