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El Entredicho Mine, Almadenejos, Almadén District, Ciudad Real, Castile-La Mancha, Spaini
Regional Level Types
El Entredicho MineMine
Almadenejos- not defined -
Almadén DistrictDistrict
Ciudad Real- not defined -
Castile-La ManchaAutonomous Community
SpainCountry

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Key
Latitude & Longitude (WGS84):
38° North , 4° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~9km
Locality type:


Mercury open cast mine near Almadén. It is now (2006) abandoned and flooded.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Iberian PeninsulaPeninsula

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

34 valid minerals.

Detailed Mineral List:

Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Aragonite
Formula: CaCO3
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Baryte
Formula: BaSO4
Reference: Salvador Maturana, Angel Hernández (1995): Almadén del Azogue. Bocamina, 1, 38-64.
Calcite
Formula: CaCO3
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Calomel
Formula: (Hg2)2+Cl2
Description: Excellent samples were recovered in the 19th century, world-quality.
Reference: Sainz de Baranda Graf, B. and Menor Salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Chalcopyrite
Formula: CuFeS2
Reference: various added photos
'Chrome-Spinel (of Dana)'
Description: Constituent of ultramafic xenoliths.
Reference: Hernández, A., Jébrak, M., Higueras, P., Oyarzun, R., Morata, D., and Munhá, J. (1999): Mineralium Deposita 34, 539-548.
Cinnabar
Formula: HgS
Reference: Salvador Maturana, Angel Hernández (1995): Almadén del Azogue. Bocamina, 1, 38-64.
Dolomite
Formula: CaMg(CO3)2
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Donharrisite
Formula: Ni3HgS3
Habit: Tabular
Description: Probably the best donharrisite in the world.
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Eglestonite
Formula: (Hg2+2)3OCl3(OH)
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Galena
Formula: PbS
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Goethite
Formula: α-Fe3+O(OH)
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Gortdrumite
Formula: Cu24Fe2Hg9S23
Description: World-quality specimens for the species.
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Graphite
Formula: C
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Gypsum
Formula: CaSO4 · 2H2O
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Hydroniumjarosite
Formula: (H3O)Fe3+3(SO4)2(OH)6
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Marcasite
Formula: FeS2
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Mercury
Formula: Hg
Reference: Salvador Maturana, Angel Hernández (1995): Almadén del Azogue. Bocamina, 1, 38-64.
Metacinnabar
Formula: HgS
Description: Excellent world-quality crystals and twins.
Reference: Olia, V. J. , Mila, C.C. & Alvarez, C.N. (1990):Sobre la presencia de sulfuro de mercurio cilbico(Metacinabrio) en el distrito minero de Almadén(Ciudad Real, España). Treb. Mus. Geol. Barcelona, 1: 209-218 Sainz de Baranda Graf, B. and Menor Salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Millerite
Formula: NiS
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Montroydite
Formula: HgO
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Calvo, Miguel. (2018). Minerales y Minas de España. Vol. IX. Silicatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 767 págs.
Muscovite var: Fuchsite
Formula: K(Al,Cr)3Si3O10(OH)2
Reference: Calvo, Miguel. (2018). Minerales y Minas de España. Vol. IX. Silicatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 767 págs.
Natrojarosite
Formula: NaFe3(SO4)2(OH)6
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Pyrite
Formula: FeS2
Reference: Salvador Maturana, Angel Hernández (1995): Almadén del Azogue. Bocamina, 1, 38-64.
Quartz
Formula: SiO2
Reference: Knut Edvard Larsen collection
Schuetteite
Formula: Hg2+3(SO4)O2
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Siderite
Formula: FeCO3
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Siegenite
Formula: CoNi2S4
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Sphalerite
Formula: ZnS
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Spinel
Formula: MgAl2O4
Description: Constituent of ultramafic xenoliths.
Reference: Hernández, A., Jébrak, M., Higueras, P., Oyarzun, R., Morata, D., and Munhá, J. (1999): Mineralium Deposita 34, 539-548.
Uricite
Formula: C5H4N4O3
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.
Wurtzite
Formula: (Zn,Fe)S
Reference: Sainz de Baranda Graf, B and Menor salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Mercury1.AD.05Hg
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Cinnabar2.CD.15aHgS
Donharrisite2.BD.20Ni3HgS3
Galena2.CD.10PbS
Gortdrumite2.BD.10Cu24Fe2Hg9S23
Marcasite2.EB.10aFeS2
Metacinnabar2.CB.05aHgS
Millerite2.CC.20NiS
Pyrite2.EB.05aFeS2
Siegenite2.DA.05CoNi2S4
Sphalerite2.CB.05aZnS
Wurtzite2.CB.45(Zn,Fe)S
Group 3 - Halides
Calomel3.AA.30(Hg2)2+Cl2
Eglestonite3.DD.05(Hg2+2)3OCl3(OH)
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Montroydite4.AC.15HgO
Quartz4.DA.05SiO2
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
Hydroniumjarosite7.BC.10(H3O)Fe3+3(SO4)2(OH)6
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Natrojarosite7.BC.10NaFe3(SO4)2(OH)6
Schuetteite7.BB.40Hg2+3(SO4)O2
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Fuchsite9.EC.15K(Al,Cr)3Si3O10(OH)2
Group 10 - Organic Compounds
Uricite10.CA.40C5H4N4O3
Unclassified Minerals, Rocks, etc.
'Chrome-Spinel (of Dana)'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Mercury1.1.7.1Hg
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 4:3
Donharrisite2.6.6.1Ni3HgS3
AmXp, with m:p = 1:1
Cinnabar2.8.14.1HgS
Galena2.8.1.1PbS
Metacinnabar2.8.2.3HgS
Millerite2.8.16.1NiS
Sphalerite2.8.2.1ZnS
Wurtzite2.8.7.1(Zn,Fe)S
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 3:4
Siegenite2.10.1.6CoNi2S4
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Miscellaneous
Gortdrumite2.16.14.1Cu24Fe2Hg9S23
Group 4 - SIMPLE OXIDES
AX
Montroydite4.2.6.1HgO
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 9 - NORMAL HALIDES
AX
Calomel9.1.8.1(Hg2)2+Cl2
Group 10 - OXYHALIDES AND HYDROXYHALIDES
Am(O,OH)pXq
Eglestonite10.5.4.1(Hg2+2)3OCl3(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Schuetteite30.1.13.1Hg2+3(SO4)O2
(AB)2(XO4)Zq
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 50 - ORGANIC COMPOUNDS
Miscellaneous
Uricite50.4.4.1C5H4N4O3
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.
Aragonite-CaCO3
'Chrome-Spinel (of Dana)'-
Hydroniumjarosite-(H3O)Fe3+3(SO4)2(OH)6
Muscovite
var: Fuchsite
-K(Al,Cr)3Si3O10(OH)2
Natrojarosite-NaFe3(SO4)2(OH)6

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Eglestonite(Hg22+)3OCl3(OH)
H Goethiteα-Fe3+O(OH)
H GypsumCaSO4 · 2H2O
H Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
H JarositeKFe3+ 3(SO4)2(OH)6
H MalachiteCu2(CO3)(OH)2
H NatrojarositeNaFe3(SO4)2(OH)6
H UriciteC5H4N4O3
CCarbon
C AnkeriteCa(Fe2+,Mg)(CO3)2
C AragoniteCaCO3
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C GraphiteC
C MalachiteCu2(CO3)(OH)2
C SideriteFeCO3
C UriciteC5H4N4O3
NNitrogen
N UriciteC5H4N4O3
OOxygen
O BaryteBaSO4
O QuartzSiO2
O SpinelMgAl2O4
O Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O AnkeriteCa(Fe2+,Mg)(CO3)2
O AragoniteCaCO3
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O Eglestonite(Hg22+)3OCl3(OH)
O Goethiteα-Fe3+O(OH)
O GypsumCaSO4 · 2H2O
O Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
O JarositeKFe3+ 3(SO4)2(OH)6
O MalachiteCu2(CO3)(OH)2
O MontroyditeHgO
O NatrojarositeNaFe3(SO4)2(OH)6
O SchuetteiteHg32+(SO4)O2
O SideriteFeCO3
O UriciteC5H4N4O3
NaSodium
Na NatrojarositeNaFe3(SO4)2(OH)6
MgMagnesium
Mg SpinelMgAl2O4
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg DolomiteCaMg(CO3)2
AlAluminium
Al SpinelMgAl2O4
Al Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S MetacinnabarHgS
S DonharrisiteNi3HgS3
S GortdrumiteCu24Fe2Hg9S23
S CinnabarHgS
S BaryteBaSO4
S PyriteFeS2
S ChalcopyriteCuFeS2
S GalenaPbS
S GypsumCaSO4 · 2H2O
S Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
S JarositeKFe3+ 3(SO4)2(OH)6
S MarcasiteFeS2
S MilleriteNiS
S NatrojarositeNaFe3(SO4)2(OH)6
S SchuetteiteHg32+(SO4)O2
S SiegeniteCoNi2S4
S SphaleriteZnS
S Wurtzite(Zn,Fe)S
ClChlorine
Cl Calomel(Hg2)2+Cl2
Cl Eglestonite(Hg22+)3OCl3(OH)
KPotassium
K Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca GypsumCaSO4 · 2H2O
CrChromium
Cr Muscovite (var: Fuchsite)K(Al,Cr)3Si3O10(OH)2
FeIron
Fe GortdrumiteCu24Fe2Hg9S23
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe Goethiteα-Fe3+O(OH)
Fe Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe MarcasiteFeS2
Fe NatrojarositeNaFe3(SO4)2(OH)6
Fe SideriteFeCO3
CoCobalt
Co SiegeniteCoNi2S4
NiNickel
Ni DonharrisiteNi3HgS3
Ni MilleriteNiS
Ni SiegeniteCoNi2S4
CuCopper
Cu GortdrumiteCu24Fe2Hg9S23
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
Zn Wurtzite(Zn,Fe)S
BaBarium
Ba BaryteBaSO4
HgMercury
Hg Calomel(Hg2)2+Cl2
Hg MetacinnabarHgS
Hg DonharrisiteNi3HgS3
Hg GortdrumiteCu24Fe2Hg9S23
Hg CinnabarHgS
Hg MercuryHg
Hg Eglestonite(Hg22+)3OCl3(OH)
Hg MontroyditeHgO
Hg SchuetteiteHg32+(SO4)O2
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Olia, V.J., Mila, C.C., and Alvarez, C.N. (1990) Sobre la presencia de sulfuro de mercurio cilbico (Metacinabrio) en el distrito minero de Almadén (Ciudad Real, España). Treb. Mus. Geol. Barcelona, 1: 209-218.
Sainz de Baranda Graf, B. and Menor Salvan, C. (2019) The Almadén mining district, Ciudad Real, Spain. The Mineralogical Record, 50 (1), 11-60.

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