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Palazuelo de las Cuevas, Aliste, Zamora, Castile and Leon, Spain

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Name(s) in local language(s):Palazuelo de las Cuevas, San Vicente de La Cabeza, Comarca de Aliste, Zamora
Latitude & Longitude (WGS84): 41° 49' 11'' North , 6° 17' 21'' West
Latitude & Longitude (decimal): 41.81972,-6.28917
GeoHash:G#: ez7tbvh3e
Köppen climate type:Csb : Warm-summer Mediterranean climate


The phosphate deposit of Palazuelo de las Cuevas is part of a set of mineralizations located in levels of siliceous materials of the volcano-sedimentary series of Silurian age belonging to the mega-tectonic structure of the Synform of Saelices.

The mineralization is associated exactly with levels of Lidites and cherts and has two types of morphology corresponding to two stages in its formation.

1st - Stratiform. Formed by small levels concordant with silicate rocks presenting structures massive, lamellar and nodular (oncolites) corresponding to a primary syngenetic diagenetic origin and with input from phosphor of exhalative-sedimentary origin.

2nd - In veins. Form small fillings in fractures or cracks
in the siliceous rocks or within quartz veins corresponding to a second phase of remobilization related to a second-stage diagenetic association of hydrothermal phenomena.

The principal mineral of this deposit is variscite which was mined in prehistoric times and for making ornaments.

This site can be included within the large mineralogical-historical interest.

Regions containing this locality

Iberian Peninsula

Peninsula - 1,601 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Reference: Joan Rosell - Rosellminerals.com (2014)
Crandallite
Formula: CaAl3(PO4)(PO3OH)(OH)6
Reference: Moro, M.C., Gil, M., Cembranos, M.L., Pérez del Villar, L. y Fernández, A. (1995): Las mineralizaciones estratiformes de variscita (Aluminofosfatitas) Silúricas de los Sinformes de Alcañices (Zamora) y Terena (Huelva). Bol. Geol. Min. Vol. 106-3 : 33-49
Phosphosiderite
Formula: FePO4 · 2H2O
Reference: Calvo, M. (2015): Minerales y Minas de España. Vol. VII, Fosfatos, arseniatos y vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 479 pp.
Quartz
Formula: SiO2
Reference: Van King
Strengite
Formula: FePO4 · 2H2O
Reference: Moro, M.C., Gil, M., Cembranos, M.L., Pérez del Villar, L. y Fernández, A. (1995): Las mineralizaciones estratiformes de variscita (Aluminofosfatitas) Silúricas de los Sinformes de Alcañices (Zamora) y Terena (Huelva). Bol. Geol. Min. Vol. 106-3 : 33-49
Turquoise
Formula: Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Description: Crystals.
Reference: Calvo, M. (2015): Minerales y Minas de España. Vol. VII, Fosfatos, arseniatos y vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 479 pp.
Variscite
Formula: AlPO4 · 2H2O
Reference: Arribas, A.; Galán, E.; Martín Pozas, J.M.; Nicolau, J. & Salvador, P. (1971): Estudio mineralógico de la variscita de Palazuelo de las Cuevas, Zamora (España). 115-132. Emilio Galan. & Salvador Mirete. ( I.G.M.E.1979): Introducción a los Minerales de España. 312. Collection J.A.CENDON. Collection Francisco Javier Gutierrez Nuez.
Wardite
Formula: NaAl3(PO4)2(OH)4 · 2H2O
Reference: Joan Rosell - Rosellminerals.com (2014)
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Reference: Calvo, M. (2015): Minerales y Minas de España. Vol. VII, Fosfatos, arseniatos y vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 479 pp.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
'Crandallite'8.BL.10CaAl3(PO4)(PO3OH)(OH)6
'Phosphosiderite'8.CD.05FePO4 · 2H2O
'Strengite'8.CD.10FePO4 · 2H2O
'Turquoise'8.DD.15Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
'Variscite'8.CD.10AlPO4 · 2H2O
'Wardite'8.DL.10NaAl3(PO4)2(OH)4 · 2H2O
'Wavellite'8.DC.50Al3(PO4)2(OH,F)3 · 5H2O

List of minerals arranged by Dana 8th Edition classification

Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
(AB)5(XO4)2·xH2O
Phosphosiderite40.4.3.2FePO4 · 2H2O
Strengite40.4.1.2FePO4 · 2H2O
Variscite40.4.1.1AlPO4 · 2H2O
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq·xH2O
Crandallite42.7.3.1CaAl3(PO4)(PO3OH)(OH)6
Wardite42.7.8.2NaAl3(PO4)2(OH)4 · 2H2O
(AB)7(XO4)4Zq·xH2O
Turquoise42.9.3.1Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
A3(XO4)2Zq·xH2O
Wavellite42.10.2.1Al3(PO4)2(OH,F)3 · 5H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H PhosphosideriteFePO4 · 2H2O
H StrengiteFePO4 · 2H2O
H TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
H VarisciteAlPO4 · 2H2O
H WarditeNaAl3(PO4)2(OH)4 · 2H2O
H WavelliteAl3(PO4)2(OH,F)3 · 5H2O
OOxygen
O BaryteBaSO4
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O PhosphosideriteFePO4 · 2H2O
O QuartzSiO2
O StrengiteFePO4 · 2H2O
O TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
O VarisciteAlPO4 · 2H2O
O WarditeNaAl3(PO4)2(OH)4 · 2H2O
O WavelliteAl3(PO4)2(OH,F)3 · 5H2O
FFluorine
F WavelliteAl3(PO4)2(OH,F)3 · 5H2O
NaSodium
Na WarditeNaAl3(PO4)2(OH)4 · 2H2O
AlAluminium
Al CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Al TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Al VarisciteAlPO4 · 2H2O
Al WarditeNaAl3(PO4)2(OH)4 · 2H2O
Al WavelliteAl3(PO4)2(OH,F)3 · 5H2O
SiSilicon
Si QuartzSiO2
PPhosphorus
P CrandalliteCaAl3(PO4)(PO3OH)(OH)6
P PhosphosideriteFePO4 · 2H2O
P StrengiteFePO4 · 2H2O
P TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
P VarisciteAlPO4 · 2H2O
P WarditeNaAl3(PO4)2(OH)4 · 2H2O
P WavelliteAl3(PO4)2(OH,F)3 · 5H2O
SSulfur
S BaryteBaSO4
CaCalcium
Ca CrandalliteCaAl3(PO4)(PO3OH)(OH)6
FeIron
Fe PhosphosideriteFePO4 · 2H2O
Fe StrengiteFePO4 · 2H2O
Fe TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
CuCopper
Cu TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
BaBarium
Ba BaryteBaSO4

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

Late Devonian - Early Devonian
358.9 - 419.2 Ma



ID: 2508187

Age: Devonian (358.9 - 419.2 Ma)

Description: Sandstone, slate, limestone, quartzite and volcaniclastic rocks

Lithology: Sandstone, slate and limestone

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

Silurian
419.2 - 443.8 Ma



ID: 3157946
Silurian shale/slate

Age: Silurian (419.2 - 443.8 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{shale/slate}, Minor{quartzite,siliceous ooze,greenschist}

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]

Ordovician
443.8 - 485.4 Ma



ID: 3185519
Paleozoic sedimentary rocks

Age: Ordovician (443.8 - 485.4 Ma)

Comments: Cantabrian Orogen

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)
- Arribas,A.,García, E., Martín Pozas, J.M., Nicolau, J. y Salvador, P. (1971): Estudio mineralógico de la variscita de Palazuelo de Las Cuevas, Zamora (España). Stud. Geol. Salmant. Uni. Salamanca, II, 115-132.
- Moro, M.C., Gil, M., Cembranos, M.L., Pérez del Villar, L. y Fernández, A. (1995): Las mineralizaciones estratiformes de variscita (Aluminofosfatitas) Silúricas de los Sinformes de Alcañices (Zamora) y Terena (Huelva). Bol. Geol. Min. Vol. 106-3 : 33-49
Calvo, M. (2015): Minerales y Minas de España. Vol. VII, Fosfatos, arseniatos y vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 479 pp.

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