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La Concepción mine, Ojén, Málaga, Andalusia, Spaini
Regional Level Types
La Concepción mineMine
OjénMunicipality
MálagaProvince
AndalusiaAutonomous Community
SpainGroup of Countries

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Latitude & Longitude (WGS84):
36° 32' 16'' North , 4° 52' 17'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Marbella134,623 (2015)2.8km
Ojén2,347 (2012)3.3km
Istán1,461 (2012)8.6km
Monda2,078 (2012)10.8km
San Pedro de Alcántara34,922 (2015)12.0km
Mindat Locality ID:
132619
Long-form identifier:
mindat:1:2:132619:5
GUID (UUID V4):
02c0b434-dd37-40ee-b441-dd40d28783a0
Other/historical names associated with this locality:
El Peñoncillo mine
Name(s) in local language(s):
Mina Concepcion


This was the most relevant iron mine in Malaga province since the foundation of the la Concepción iron mining and steel corporation in early 1826, by Manuel Agustin Heredia, a famous businessman from Spanish society of the middle 19th century. At the beginning of the 20th century (1909), the mine was worked by the English company "The Marbella Iron Ore Company Limited", transporting the mineral ore to the UK.

La Concepción or Peñoncillo mine is a remarkable calcium-magnesium skarn deposit within a heterogeneous sequence of marble-biotite gneiss-green orthoamphibolites "hornfels", related to a high grade regional metamorphism event (catazone-Blanca Unit). The unit is strongly folded and fractured, showing a syncline-anticline structure where ores are accommodated. The geological scheme is closely related to the tectonic border of the Alpujata massif, where the metamorphic sequence is overthrusted by alpine peridotites (lherzolite type). Crystalline gneisses are banded and strongly folded, containing cordierite-plagioclase-biotite-pyrite and amphibole.

Marbles are granoblastic and banded (white colour), where amphibolites lenses bearing magnetite are interlayered (ortho-amphibolite).
As mentioned before, host rock and iron ores are strongly folded, forming asymmetric syncline. As a result, ores often form wedge-shaped lenses which generated problems within the underground works and mine explorations.

Ores were preferably worked following pyrite-magnetite veins and masses refusing pyrrhotite. Pyrite and minor chalcopyrite developed later than magnetite ores.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


27 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Analcime
Formula: Na(AlSi2O6) · H2O
Aragonite
Formula: CaCO3
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Augite var. Fassaite
Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Calcite
Formula: CaCO3
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chalcopyrite
Formula: CuFeS2
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Clinochlore var. Pennine
Formula: Mg5Al(AlSi3O10)(OH)8
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Cummingtonite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
Datolite
Formula: CaB(SiO4)(OH)
Diopside
Formula: CaMgSi2O6
Enstatite
Formula: Mg2Si2O6
Enstatite var. Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Forsterite
Formula: Mg2SiO4
'Garnet Group'
Formula: X3Z2(SiO4)3
Hedenbergite
Formula: CaFe2+Si2O6
'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
'Hypersthene'
Formula: (Mg,Fe)SiO3
Magnetite
Formula: Fe2+Fe3+2O4
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe1-xS
Quartz
Formula: SiO2
References:
Colección Juan A.M. Barnestein.Identified by Juan A. M. Barnestein (Barny): Visual Identification
'Scapolite'
Spinel
Formula: MgAl2O4
Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
'Thomsonite Subgroup'
Titanite
Formula: CaTi(SiO4)O
Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Wollastonite
Formula: Ca3(Si3O9)

Gallery:

Mg5Al(AlSi3O10)(OH)8 Clinochlore
Mg2Si2O6 Enstatite
X3Z2(SiO4)3 'Garnet Group'
Fe2+Fe3+2O4 Magnetite
MgAl2O4 Spinel

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Pyrrhotite2.CC.10Fe1-xS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Spinel4.BB.05MgAl2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Aragonite5.AB.15CaCO3
Group 9 - Silicates
Forsterite9.AC.05Mg2SiO4
Titanite9.AG.15CaTi(SiO4)O
Datolite9.AJ.20CaB(SiO4)(OH)
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Enstatite
var. Bronzite
9.DA.05(Mg,Fe2+)2[SiO3]2
9.DA.05Mg2Si2O6
Diopside9.DA.15CaMgSi2O6
Hedenbergite9.DA.15CaFe2+Si2O6
Augite
var. Fassaite
9.DA.15(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Cummingtonite9.DE.05◻{Mg2}{Mg5}(Si8O22)(OH)2
Tremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Wollastonite9.DG.05Ca3(Si3O9)
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Clinochlore
var. Pennine
9.EC.55Mg5Al(AlSi3O10)(OH)8
9.EC.55Mg5Al(AlSi3O10)(OH)8
Mesolite9.GA.05Na2Ca2Si9Al6O30 · 8H2O
Thomsonite-Ca9.GA.10NaCa2[Al5Si5O20] · 6H2O
Analcime9.GB.05Na(AlSi2O6) · H2O
Chabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Unclassified
'Scapolite'-
'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
'Hypersthene'-(Mg,Fe)SiO3
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'Garnet Group'-X3Z2(SiO4)3
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Thomsonite Subgroup'-

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
H AnalcimeNa(AlSi2O6) · H2O
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H ClinochloreMg5Al(AlSi3O10)(OH)8
H Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
H DatoliteCaB(SiO4)(OH)
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H MesoliteNa2Ca2Si9Al6O30 · 8H2O
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
H Tremolite◻Ca2Mg5(Si8O22)(OH)2
H Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
H Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
H Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
BBoron
B DatoliteCaB(SiO4)(OH)
CCarbon
C AragoniteCaCO3
C CalciteCaCO3
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O AnalcimeNa(AlSi2O6) · H2O
O AragoniteCaCO3
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O CalciteCaCO3
O ClinochloreMg5Al(AlSi3O10)(OH)8
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
O DiopsideCaMgSi2O6
O DatoliteCaB(SiO4)(OH)
O EnstatiteMg2Si2O6
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O ForsteriteMg2SiO4
O HedenbergiteCaFe2+Si2O6
O Hypersthene(Mg,Fe)SiO3
O MagnetiteFe2+Fe23+O4
O MesoliteNa2Ca2Si9Al6O30 · 8H2O
O PhlogopiteKMg3(AlSi3O10)(OH)2
O QuartzSiO2
O SpinelMgAl2O4
O Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
O TitaniteCaTi(SiO4)O
O Tremolite◻Ca2Mg5(Si8O22)(OH)2
O WollastoniteCa3(Si3O9)
O Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
O Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
O Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
O Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O Garnet GroupX3Z2(SiO4)3
O Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Na AnalcimeNa(AlSi2O6) · H2O
Na MesoliteNa2Ca2Si9Al6O30 · 8H2O
Na Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Na Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Na Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
MgMagnesium
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mg DiopsideCaMgSi2O6
Mg EnstatiteMg2Si2O6
Mg ForsteriteMg2SiO4
Mg Hypersthene(Mg,Fe)SiO3
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SpinelMgAl2O4
Mg Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mg Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
Mg Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Mg Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
AlAluminium
Al AnalcimeNa(AlSi2O6) · H2O
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al MesoliteNa2Ca2Si9Al6O30 · 8H2O
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al SpinelMgAl2O4
Al Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Al Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Al Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Al Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Al Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si AnalcimeNa(AlSi2O6) · H2O
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si Cummingtonite◻{Mg2}{Mg5}(Si8O22)(OH)2
Si DiopsideCaMgSi2O6
Si DatoliteCaB(SiO4)(OH)
Si EnstatiteMg2Si2O6
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si ForsteriteMg2SiO4
Si HedenbergiteCaFe2+Si2O6
Si Hypersthene(Mg,Fe)SiO3
Si MesoliteNa2Ca2Si9Al6O30 · 8H2O
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si QuartzSiO2
Si Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Si TitaniteCaTi(SiO4)O
Si Tremolite◻Ca2Mg5(Si8O22)(OH)2
Si WollastoniteCa3(Si3O9)
Si Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
Si Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Si Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Si Clinochlore var. PennineMg5Al(AlSi3O10)(OH)8
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Si Garnet GroupX3Z2(SiO4)3
Si Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
S PyrrhotiteFe1-xS
ClChlorine
Cl Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
K Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca AragoniteCaCO3
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca DatoliteCaB(SiO4)(OH)
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca HedenbergiteCaFe2+Si2O6
Ca MesoliteNa2Ca2Si9Al6O30 · 8H2O
Ca Thomsonite-CaNaCa2[Al5Si5O20] · 6H2O
Ca TitaniteCaTi(SiO4)O
Ca Tremolite◻Ca2Mg5(Si8O22)(OH)2
Ca WollastoniteCa3(Si3O9)
Ca Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Ca Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Ti TitaniteCaTi(SiO4)O
Ti Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe ChalcopyriteCuFeS2
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe HedenbergiteCaFe2+Si2O6
Fe Hypersthene(Mg,Fe)SiO3
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe PyrrhotiteFe1-xS
Fe Enstatite var. Bronzite(Mg,Fe2+)2[SiO3]2
Fe Augite var. Fassaite(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
CuCopper
Cu ChalcopyriteCuFeS2

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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References

 
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