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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:
41° North , 4° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~250km
Mindat Locality ID:
427449
Long-form identifier:
mindat:1:2:427449:3
GUID (UUID V4):
0a9ba818-e088-4814-9eca-8d364e1019ce


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.

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

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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.
'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.
References:
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 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2
Bismuth
Formula: Bi
Description: First generation of pegmatites.
Bismuthinite
Formula: Bi2S3
Description: First generation of pegmatites.
Calcite
Formula: CaCO3
Cassiterite
Formula: SnO2
Localities: Reported from at least 6 localities in this region.
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.
'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.
Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
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.
References:
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
'White mica'
Zircon
Formula: Zr(SiO4)
Description: First generation of pegmatites.

List of minerals arranged by Strunz 10th Edition classification

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

List of minerals for each chemical element

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

Localities in this Region

  • Guarda
    • Figueira de Castelo Rodrigo

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
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