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Fregeneda–Almendra pegmatite field, Castile and Leon, Spaini
Regional Level Types
Fregeneda–Almendra pegmatite fieldPegmatite Field
Castile and LeonAutonomous Community
SpainCountry

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Latitude & Longitude (WGS84):
40° North , 6° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~9km
Mindat Locality ID:
427449
Long-form identifier:
mindat:1:2:427449:3
GUID (UUID V4):
0


Hundreds of pegmatite bodies have been identified in the Fregeneda–Almendra Pegmatite Field, which have been classified into eleven types according to their mineralogy, textural features, shape and size, degree of fractionation, and relationships with deformation and tectonic structures. Overall, the aplite-pegmatites of Fregeneda–Almendra display a regional spatial zonation from barren to evolved types with increasing distance from the MEPL Granitic Complex, as demonstrated by the northward-increasing Li-F contents. Of the eleven recognized pegmatite types, four consist of concordant barren dykes that occur relatively close or within the MEPL Granitic Complex, with quartz, K-feldspar > albite, muscovite, tourmaline ± andalusite ± garnet (types 1 to 4). The remaining seven pegmatite types consist of discordant dykes with a N10°–50°E strike. Intermediate (in terms of fractionation) bodies (types 5 and 6) are characterized by the occurrence of Fe–Mn phosphates, amblygonite group minerals ± tourmaline, and micas and feldspars showing higher Rb and Cs contents relative to the concordant barren aplite-pegmatites. Evolved aplite-pegmatites of the Fregeneda–Almendra field host spodumene, petalite, Li-micas and amblygonite group minerals, with significant enrichment in Li ± F, Sn, Rb, Nb > Ta, B, P and Be (types 7 to 10). Finally, type 11 dykes are represented by quartz veins rich in cassiterite, micas, and albite.

The Fregeneda-Almendra (FA) pegmatitic field (20 km E-W x 5 km N-S) encompasses different types of pegmatitic facies from which Feli mine is the most important deposit. 11 pegmatite types were differentiated intruding the Schist and Greywacke Complex based on their mineralogy. The field is framed to the south by the syn-kinematic Medâ-Penedono-Lumbrales leucogranitic complex (MPL) and to the NE by the Saucelle granite. These granites have U-Pb ages between 317-300 Ma. 40Ar/39Ar ages of 311.2 ± 3.7 Ma for MPL and 305 ± 3.3 Ma for the Feli suboutcropping granite, while Lumbrales granite yields a Rb-Sr whole rock age of 300 ± 0.8 Ma.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

33 valid minerals.

Rock Types Recorded


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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Localities: Reported from at least 6 localities in this region.
Description: Albitized microcline selvages (greisens) in pegmatite dykes. First generation of pegmatites.
'Alluaudite Group'
'Amblygonite Group'
Andalusite
Formula: Al2(SiO4)O
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Description: First generation of pegmatites. Second generation of pegmatites.
Arsenopyrite
Formula: FeAsS
Description: First generation of pegmatites.
Beryl
Formula: Be3Al2(Si6O18)
Description: Second generation of pegmatites.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Bismuthinite
Formula: Bi2S3
Description: First generation of pegmatites.
Calcite
Formula: CaCO3
Cassiterite
Formula: SnO2
Localities: Reported from at least 6 localities in this region.
Description: First generation of pegmatites. Second generation of pegmatites.
Chalcocite
Formula: Cu2S
Chalcopyrite
Formula: CuFeS2
Description: First generation of pegmatites.
'Chlorite Group'
'Columbite-(Fe)-Columbite-(Mn) Series'
Description: First generation of pegmatites. Second generation of pegmatites.
'Columbite Group'
Columbite-(Mn)
Formula: Mn2+Nb2O6
Cookeite
Formula: (LiAl4◻)[AlSi3O10](OH)8
Covellite
Formula: CuS
Description: First generation of pegmatites.
Crandallite
Formula: CaAl3(PO4)(PO3OH)(OH)6
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Eucryptite
Formula: LiAlSiO4
'Feldspar Group'
'Feldspar Group var. Perthite'
Ferberite
Formula: FeWO4
Description: First generation of pegmatites.
Fluorapatite
Formula: Ca5(PO4)3F
Fluorite
Formula: CaF2
Description: Second generation of pegmatites.
Galena
Formula: PbS
Description: First generation of pegmatites.
'Garnet Group'
Formula: X3Z2(SiO4)3
'K Feldspar'
Localities: Reported from at least 6 localities in this region.
Description: Second generation of pegmatites.
'Lepidolite'
Description: Second generation of pegmatites.
Messelite
Formula: Ca2Fe2+(PO4)2 · 2H2O
Microcline
Formula: K(AlSi3O8)
Description: Albitized microcline selvages (greisens) in pegmatite dykes. First generation of pegmatites.
Montebrasite
Formula: LiAl(PO4)(OH)
Localities: Reported from at least 6 localities in this region.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 6 localities in this region.
Description: First generation of pegmatites.
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
Native Bismuth
Formula: Bi
Description: First generation of pegmatites.
Petalite
Formula: LiAl(Si4O10)
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
Rutile
Formula: TiO2
Description: Second generation of pegmatites.
Sphalerite
Formula: ZnS
Description: First generation of pegmatites.
Spodumene
Formula: LiAlSi2O6
Description: Second generation of pegmatites.
Stannite
Formula: Cu2FeSnS4
Description: First generation of pegmatites.
'Tantalite'
Formula: (Mn,Fe)(Ta,Nb)2O6
Description: First generation of pegmatites. Second generation of pegmatites.
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Description: First generation of pegmatites.
Titanite
Formula: CaTi(SiO4)O
'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
Description: Second generation of pegmatites.
'White mica'
Zircon
Formula: Zr(SiO4)
Description: First generation of pegmatites.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Bismuth1.CA.05Bi
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Covellite2.CA.05aCuS
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Stannite2.CB.15aCu2FeSnS4
Galena2.CD.10PbS
Bismuthinite2.DB.05Bi2S3
Arsenopyrite2.EB.20FeAsS
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Cassiterite4.DB.05SnO2
Rutile4.DB.05TiO2
Ferberite4.DB.30FeWO4
Columbite-(Mn)4.DB.35Mn2+Nb2O6
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
Montebrasite8.BB.05LiAl(PO4)(OH)
Crandallite8.BL.10CaAl3(PO4)(PO3OH)(OH)6
Fluorapatite8.BN.05Ca5(PO4)3F
Messelite8.CG.05Ca2Fe2+(PO4)2 · 2H2O
Group 9 - Silicates
Eucryptite9.AA.05LiAlSiO4
Zircon9.AD.30Zr(SiO4)
Andalusite9.AF.10Al2(SiO4)O
Titanite9.AG.15CaTi(SiO4)O
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Beryl9.CJ.05Be3Al2(Si6O18)
Spodumene9.DA.30LiAlSi2O6
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Cookeite9.EC.55(LiAl4◻)[AlSi3O10](OH)8
Petalite9.EF.05LiAl(Si4O10)
Microcline9.FA.30K(AlSi3O8)
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
'Chlorite Group'-
'Feldspar Group'-
'Lepidolite'-
'Tantalite'-(Mn,Fe)(Ta,Nb)2O6
'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
'Feldspar Group
var. Perthite'
-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'K Feldspar'-
'Garnet Group'-X3Z2(SiO4)3
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Alluaudite Group'-
'Amblygonite Group'-
'Columbite Group'-
'White mica'-

List of minerals for each chemical element

HHydrogen
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
H Cookeite(LiAl4◻)[AlSi3O10](OH)8
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H MesseliteCa2Fe2+(PO4)2 · 2H2O
H MontebrasiteLiAl(PO4)(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
H ApatiteCa5(PO4)3(Cl/F/OH)
LiLithium
Li Cookeite(LiAl4◻)[AlSi3O10](OH)8
Li EucryptiteLiAlSiO4
Li MontebrasiteLiAl(PO4)(OH)
Li PetaliteLiAl(Si4O10)
Li SpodumeneLiAlSi2O6
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
C CalciteCaCO3
OOxygen
O AlbiteNa(AlSi3O8)
O AndalusiteAl2(SiO4)O
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
O BerylBe3Al2(Si6O18)
O CalciteCaCO3
O CassiteriteSnO2
O Cookeite(LiAl4◻)[AlSi3O10](OH)8
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O EucryptiteLiAlSiO4
O FerberiteFeWO4
O FluorapatiteCa5(PO4)3F
O Columbite-(Mn)Mn2+Nb2O6
O MesseliteCa2Fe2+(PO4)2 · 2H2O
O MicroclineK(AlSi3O8)
O MontebrasiteLiAl(PO4)(OH)
O MuscoviteKAl2(AlSi3O10)(OH)2
O PetaliteLiAl(Si4O10)
O PhlogopiteKMg3(AlSi3O10)(OH)2
O QuartzSiO2
O RutileTiO2
O SpodumeneLiAlSi2O6
O Tantalite(Mn,Fe)(Ta,Nb)2O6
O TitaniteCaTi(SiO4)O
O TourmalineAD3G6(T6O18)(BO3)3X3Z
O ZirconZr(SiO4)
O Columbite-(Fe)-Columbite-(Mn) Series
O Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O Garnet GroupX3Z2(SiO4)3
O ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AlbiteNa(AlSi3O8)
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AndalusiteAl2(SiO4)O
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Al BerylBe3Al2(Si6O18)
Al Cookeite(LiAl4◻)[AlSi3O10](OH)8
Al CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al EucryptiteLiAlSiO4
Al MicroclineK(AlSi3O8)
Al MontebrasiteLiAl(PO4)(OH)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PetaliteLiAl(Si4O10)
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al SpodumeneLiAlSi2O6
Al Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si AlbiteNa(AlSi3O8)
Si AndalusiteAl2(SiO4)O
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Si BerylBe3Al2(Si6O18)
Si Cookeite(LiAl4◻)[AlSi3O10](OH)8
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si EucryptiteLiAlSiO4
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PetaliteLiAl(Si4O10)
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si QuartzSiO2
Si SpodumeneLiAlSi2O6
Si TitaniteCaTi(SiO4)O
Si ZirconZr(SiO4)
Si Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Si Garnet GroupX3Z2(SiO4)3
PPhosphorus
P CrandalliteCaAl3(PO4)(PO3OH)(OH)6
P FluorapatiteCa5(PO4)3F
P MesseliteCa2Fe2+(PO4)2 · 2H2O
P MontebrasiteLiAl(PO4)(OH)
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S ArsenopyriteFeAsS
S BismuthiniteBi2S3
S ChalcopyriteCuFeS2
S ChalcociteCu2S
S CovelliteCuS
S GalenaPbS
S SphaleriteZnS
S StanniteCu2FeSnS4
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K PhlogopiteKMg3(AlSi3O10)(OH)2
K Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca CalciteCaCO3
Ca CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca MesseliteCa2Fe2+(PO4)2 · 2H2O
Ca TitaniteCaTi(SiO4)O
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Ti BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
MnManganese
Mn Columbite-(Mn)Mn2+Nb2O6
Mn Tantalite(Mn,Fe)(Ta,Nb)2O6
Mn Columbite-(Fe)-Columbite-(Mn) Series
FeIron
Fe ArsenopyriteFeAsS
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fe ChalcopyriteCuFeS2
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe FerberiteFeWO4
Fe MesseliteCa2Fe2+(PO4)2 · 2H2O
Fe StanniteCu2FeSnS4
Fe Tantalite(Mn,Fe)(Ta,Nb)2O6
Fe Columbite-(Fe)-Columbite-(Mn) Series
CuCopper
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
Cu CovelliteCuS
Cu StanniteCu2FeSnS4
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Columbite-(Mn)Mn2+Nb2O6
Nb Tantalite(Mn,Fe)(Ta,Nb)2O6
Nb Columbite-(Fe)-Columbite-(Mn) Series
SnTin
Sn CassiteriteSnO2
Sn StanniteCu2FeSnS4
SbAntimony
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
TaTantalum
Ta Tantalite(Mn,Fe)(Ta,Nb)2O6
WTungsten
W FerberiteFeWO4
PbLead
Pb GalenaPbS
BiBismuth
Bi Native BismuthBi
Bi BismuthiniteBi2S3

Localities in this Region

  • Guarda
    • Figueira de Castelo Rodrigo

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate
EuropeContinent

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