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La Juanona Quarry, Antequera, Málaga, Andalusia, Spaini
Regional Level Types
La Juanona QuarryQuarry
Antequera- not defined -
Málaga- not defined -
AndalusiaAutonomous Community
SpainCountry

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Name(s) in local language(s):Cantera La Juanona, Antequera, Málaga, Andalucía, España
Latitude & Longitude (WGS84): 36° 59' 54'' North , 4° 32' 59'' West
Latitude & Longitude (decimal): 36.99861,-4.55000
GeoHash:G#: eysf2rqu9
Locality type:Quarry
Köppen climate type:Csa : Hot-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Antequera45,168 (2012)2.5km
Casabermeja3,274 (2012)15.9km
Villanueva del Rosario3,356 (2018)16.4km
Mollina4,082 (2018)17.0km
Archidona8,506 (2012)18.0km


Well-known and classical Spanish locality for blue quartz crystals, coloured by inclusions of blue amphibole (presumably magnesioriebeckite, although riebeckite and "sodic-ferrogedrite" have been reported too). There is another assumption that the bluish colour is produced by aerinite needles as a consequence of the associated hydrothermal process. On the other hand, from a geological point of view, the occurrence of magnesioriebeckite in dolerite rocks (metabasite) is rather rare worldwide as that mineral mainly forms in highly alkali-enriched rocks occurrences like syenite, gneiss, granite, or even high-grade metamorphism schist (high-pressure metamorphism). At the Antequera site, blue quartz crystals formed filling joints in highly weathered ophite blocks, where late residual silica fluids generated intense hydrothermal action.

Blue quartz crystals from this deposit reach up to 1cm in size, with colours ranging from light bluish to deep blue (ultramarine). In conjunction with some similarly mineralized localities in Cadiz province (Olvera, Torrealhaquime, and Coripe), the blue quartz crystal associations from Antequera ophites represent one of the most remarkable mineral assemblages worldwide, forming vugs and crystalline geodes of at least two generations of crystals which can overlap.

The deposit is formed by a conical body of green subvolcanic ophite-dolerite intruded in Keuper Triassic gypsum-clayey-carbonates series (olistostrome). Ophites are often highly weathered and hydrothermalized along joints with ankerite, hematite, secondary gypsum, blue quartz, and aerinite formation. Blue quartz crystals are filling joints (0.5-1cm) within highly fractured and weathered ophite rock (basic subvolcanic dolerite rock with intergrowth of plagioclase-augite texture). Often coated by pale carbonates, gypsum, and grey submetallic hematite. In some other areas, the quartz crystals are formed on highly weathered unconnected olistoliths of ophites which settled in gypsum-claystone sequence. Blue quartz crystals have been also reported on massive white gypsum (alabaster).

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Iberian PeninsulaPeninsula

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


21 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Pierre Rondelez; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Aerinite ?
Formula: (Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Description: Alleged by some to be present at La Juanona, and to be the cause of the color in the famous local blue quartz crystals, apparently based just on the colour, habit, and ophitic association. Analyzed specimens of the fibrous material associated with blue quartz are riebeckite - magnesioriebeckite, but some other specimens allegedly turned out to be aerinite-riebeckite intergrowths. No analyses have been published, and the ID remains questionable.
Reference: Mineralogical Record Magazine (1996) Blue quartz from Antequera-Olvera ophite: 27(2); Juan C.Romero Silva 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.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Albite
Formula: Na(AlSi3O8)
Reference: Josep Sanchez-Lafuente Mariol specimens and powder XRD.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Romero Silva JC (2003) Minerales y Rocas de la provincia de Malaga España. Edita CEDMA County council ; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
'Apatite'
Habit: Elongated prismatic
Reference: Pierre Rondelez; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
Reference: - Romero Silva JC(2003). Minerales y Rocas de la provincia de Málaga. Edited by CEDMA. Malaga City Council. 318pag. 1map (pags.226 and 275); Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Calcite
Formula: CaCO3
Reference: Jose Miguel Sola Fernandez collection; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Josep Sanchez-Lafuente Mariol specimens and powder XRD.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Diopside
Formula: CaMgSi2O6
Reference: José Miguel Sola; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Pierre Rondelez; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Ferro-actinolite
Formula: ☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Reference: Josep Sanchez-Lafuente Mariol specimens and powder XRD.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Fluorite
Formula: CaF2
Habit: Cubic
Colour: Violaceous
Description: On carbonate rocks west of the quarry.
Reference: José Miguel Sola; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
'Glauconite'
Formula: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Reference: Josep Sanchez-Lafuente Mariol specimens, with XRD by Josep Elvira.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Gypsum
Formula: CaSO4 · 2H2O
Reference: Romero Silva JC (2003) Minerales y Rocas de la provincia de Malaga España. Edita CEDMA County council ; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Hematite
Formula: Fe2O3
Reference: Calvo, M. (2009): Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid . Fundación Gómez Pardo. 752 pp. - Romero Silva JC (2003). MInerales y Rocas de la provincia de Málaga. Edited by CEDMA, Malaga city Council. 318pg. 1map; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Magnesio-riebeckite ?
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Reference: (alleged by some collectors to colour the quartz blue, but might be mistaken ID; no analyses presented); Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Calvo, M. (2009): Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 752 pp; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Microcline
Formula: K(AlSi3O8)
Reference: Josep Sanchez-Lafuente Mariol specimens, with XRD by Josep Elvira.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Dion Glastra specimen; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
'Pumpellyite'
Reference: Romero Silva J.C (2003) Minerales y Rocas de la Provincia de Málaga. Published by CEDMA County Council. 318 pp. 1 map
Pyrite
Formula: FeS2
Reference: Pierre Rondelez; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
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.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Quartz var: Blue Quartz
Formula: SiO2
Reference: Mineralogical Record (1996). Blue quartz from Antequera-Olvera ophite. Vol 27, nº2. by Juan Carlos Romero Silva 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.; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Description: "Acabo de analizar una muestra de la costra azul que suele aparecer en la Juanona y alrededores junto al cuarzo azul característico de la zona (Antequera). He empleado SEM (microscopía electrónica de barrido; Philips XL-30LV, 15 kV, BS, presión controlada 0,3 torr, sin recubrimiento), EDS (análisis de emisión de rayos X por dispersión de energía; EDAX UTW Sapphire) y XRD (difracción de rayos X, Philips Xpert, 45 kv, 40 mA). Así, tanto la morfología (vista por SEM, apreciándose el material formado por fibras), como la composición (determinada por EDS, con exiguo contenido en carbono y relación elemental que se ajusta a la estequiometría propia de la serie riebeckita-magnesioriebeckita, con algo de calcio substituyendo al Mg) y la estructura cristalina (establecida por XRD, donde la fase detectada con claridad, además del cuarzo, es riebeckita) confirman que no es aerinita, sino una riebeckita con parte del Fe substituido por Mg y Ca, aunque sin llegar a la estequiometría extrema de la magnesioriebeckita." - Juan Miguel Jiménez
Reference: Juan Miguel Jiménez analyses; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
'Sodic-ferrogedrite'
Formula: {Na}{Fe2+2}{Fe2+3Al2}(Al3Si5O22)(OH)2
Reference: Christian Rewitzer collection; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map
Titanite
Formula: CaTi(SiO4)O
Reference: Pierre Rondelez; Romero Silva, J.C (2003). Minerales y Rocas de la Provincia de Málaga. CEDMA County Council 318 pp 1 map

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Blue Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Aerinite ?9.DB.45(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Albite9.FA.35Na(AlSi3O8)
Axinite-(Fe)9.BD.20Ca2Fe2+Al2BSi4O15OH
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Diopside9.DA.15CaMgSi2O6
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ferro-actinolite9.DE.10☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Magnesio-riebeckite ?9.DE.25◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Microcline9.FA.30K(AlSi3O8)
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Riebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
'Sodic-ferrogedrite'9.DD.05{Na}{Fe2+2}{Fe2+3Al2}(Al3Si5O22)(OH)2
Titanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Glauconite'-(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
'Pumpellyite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
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 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Axinite-(Fe)56.2.2.1Ca2Fe2+Al2BSi4O15OH
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 68 - INOSILICATES Structures with Chains of More Than One Width
Structures with Chains of More Than One Width
Aerinite ?68.1.3.1(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
'Glauconite'71.2.2a.5(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Apatite'-
Ferro-actinolite-☐{Ca2}{Fe2+5}(Si8O22)(OH)2
Magnesio-riebeckite ?-◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
'Pumpellyite'-
Quartz
var: Blue Quartz
-SiO2
Riebeckite-◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
'Sodic-ferrogedrite'-{Na}{Fe2+2}{Fe2+3Al2}(Al3Si5O22)(OH)2

List of minerals for each chemical element

HHydrogen
H Sodic-ferrogedrite{Na}{Fe22+}{Fe32+Al2}(Al3Si5O22)(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
H Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
H ClinochloreMg5Al(AlSi3O10)(OH)8
H Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
H PrehniteCa2Al2Si3O10(OH)2
H GypsumCaSO4 · 2H2O
H Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
H Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
H Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
BBoron
B Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
CCarbon
C CalciteCaCO3
C AnkeriteCa(Fe2+,Mg)(CO3)2
C Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
OOxygen
O Sodic-ferrogedrite{Na}{Fe22+}{Fe32+Al2}(Al3Si5O22)(OH)2
O QuartzSiO2
O TitaniteCaTi(SiO4)O
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
O Quartz (var: Blue Quartz)SiO2
O Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O AlbiteNa(AlSi3O8)
O Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O PrehniteCa2Al2Si3O10(OH)2
O CalciteCaCO3
O DiopsideCaMgSi2O6
O GypsumCaSO4 · 2H2O
O AnkeriteCa(Fe2+,Mg)(CO3)2
O Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
O MicroclineK(AlSi3O8)
O Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
O Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
FFluorine
F FluoriteCaF2
NaSodium
Na Sodic-ferrogedrite{Na}{Fe22+}{Fe32+Al2}(Al3Si5O22)(OH)2
Na AlbiteNa(AlSi3O8)
Na Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Na Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Na Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Na Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg DiopsideCaMgSi2O6
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Mg Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Mg Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
AlAluminium
Al Sodic-ferrogedrite{Na}{Fe22+}{Fe32+Al2}(Al3Si5O22)(OH)2
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al AlbiteNa(AlSi3O8)
Al PrehniteCa2Al2Si3O10(OH)2
Al Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Al MicroclineK(AlSi3O8)
Al Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
SiSilicon
Si Sodic-ferrogedrite{Na}{Fe22+}{Fe32+Al2}(Al3Si5O22)(OH)2
Si QuartzSiO2
Si TitaniteCaTi(SiO4)O
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Si Quartz (var: Blue Quartz)SiO2
Si Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si AlbiteNa(AlSi3O8)
Si Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Si PrehniteCa2Al2Si3O10(OH)2
Si DiopsideCaMgSi2O6
Si Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Si MicroclineK(AlSi3O8)
Si Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Si Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
SSulfur
S PyriteFeS2
S GypsumCaSO4 · 2H2O
KPotassium
K Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
K MicroclineK(AlSi3O8)
CaCalcium
Ca TitaniteCaTi(SiO4)O
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Ca Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Ca PrehniteCa2Al2Si3O10(OH)2
Ca CalciteCaCO3
Ca DiopsideCaMgSi2O6
Ca GypsumCaSO4 · 2H2O
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca FluoriteCaF2
Ca Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
TiTitanium
Ti TitaniteCaTi(SiO4)O
FeIron
Fe Sodic-ferrogedrite{Na}{Fe22+}{Fe32+Al2}(Al3Si5O22)(OH)2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Fe PyriteFeS2
Fe Ferro-actinolite☐{Ca2}{Fe52+}(Si8O22)(OH)2
Fe Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
Fe Glauconite(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Fe Aerinite(Ca5.1Na0.5)(Fe3+,Al,Fe2+,Mg)4(Al,Mg)6[HSi12O36(OH)12][(CO3)1.2(H2O)12]
Fe Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2

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

Triassic
201.3 - 251.902 Ma



ID: 3150959
Germano-Andaluz

Age: Triassic (201.3 - 251.902 Ma)

Description: salt diapirism

Lithology: Major:{mud}, Minor{sandstone,dolomite/dolostone,evaporites}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Triassic
201.3 - 251.902 Ma



ID: 2502795

Age: Triassic (201.3 - 251.902 Ma)

Description: Sandstone, conglomerate, dolomite, limestone, clay and gypsum

Lithology: Conglomerate, sandstone, limestone, gypsum and variegated clay

Reference: Mapa Geológico de la Península Ibérica, Baleares y Canarias a escala 1:1.000.000. Instituto Geológico y Minero de España. [77]

Triassic
201.3 - 251.902 Ma



ID: 3189798
Mesozoic sedimentary rocks

Age: Triassic (201.3 - 251.902 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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Puga Rodriguez, E., Morten, L., Bondi, M., Bargossi, J.M., Ruiz Cruz, M.D., and Diaz de Federico, A. (1983) Metamorphosed "ophites" from Archidona region Subbetic Zone (Spain). Estudios Geologicos, 39(5-6), 307-317.
Morata Céspedes, D.A. (1993) Petrología y Geoquímica de las Ofitas de las Zonas Externas de las Cordilleras Béticas. Tesis Universidad de Granada, 316 pp.
Romero Silva, J.C. (1996) Blue quartz from the Antequera-Olvera ophite (Malaga-Spain). Mineralogical Record, 27(2), 99.
Romero Silva, J.C. (2003) Minerales y Rocas de la provincia de Málaga. Edita CEDMA County Council of Málaga. 318 pp. 1 map.
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 pp. (in Spanish, with plate captions also in English).

External Links



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