Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Fornás Mine, Aríns, Santiago De Compostela, A Coruña (La Coruña), Galicia, Spain

Oldest recorded age at locality: 444
Youngest recorded age at locality: 419

mindat Locality ID: 246047
mindat URL: http://www.mindat.org/loc-246047.html

Tectonic Settings:

Total number of sublocalities beneath "Fornás Mine, Aríns, Santiago De Compostela, A Coruña (La Coruña), Galicia, Spain": 0
Total number of bottom-level sublocalities: 0

Latitude: 42°51'9"N
Longitude: 8°29'18"W
Decimal Degree (lat, lon): 42.8525,-8.4883333333333
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ca Cu Fe H K Mg Mo Na O S Si Ti Zn 

Elements from minerals reported directly at this locality: Al Ca Cu Fe H K Mg Mo Na O S Si Ti Zn 

Structural Groups for minerals in this locality: 
AmphiboleChalcopyriteChloriteClayCopiapiteCorrensiteCorundumDiasporeFeldsparGarnet
GypsumHalotrichiteMolybdeniteNickelineNolaniteNonePyritePyroxeneQuartzSphalerite
SpinelStaurolite

24 IMA Minerals at location:
Actinolite  (*)Albite  (*)Almandine  (*)Chalcopyrite  (*)Clinochlore  (*)
Copiapite  (*)Diopside  (*)Ferrihydrite  (*)Gahnite  (*)Gedrite  (*)
Goethite  (*)Gypsum  (*)Halotrichite  (*)Hercynite  (*)Hydrobiotite  (*)
Ilmenite  (*)Magnetite  (*)Molybdenite  (*)Pargasite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Sphalerite  (*)Staurolite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)244441903419
Albite  (*)FeldsparNa(AlSi3O8)44441908803
Almandine  (*)GarnetFe2+3Al2(SiO4)344441902353
Chalcopyrite  (*)ChalcopyriteCuFeS2444419027198
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)844441901756
Copiapite  (*)CopiapiteFe2+Fe3+4(SO4)6(OH)2·20H2O4444190382
Diopside  (*)PyroxeneCaMgSi2O644441904135
Ferrihydrite  (*)NolaniteFe3+10O14(OH)2444419086
Gahnite  (*)SpinelZnAl2O44444190445
Gedrite  (*)Amphibole   Mg2(Mg3Al2)(Si6Al2)O22(OH)24444190178
Goethite  (*)DiasporeFeO(OH)44441907437
Gypsum  (*)GypsumCa(SO4)·2H2O44441906890
Halotrichite  (*)HalotrichiteFe2+Al2(SO4)4·22H2O4444190409
Hercynite  (*)SpinelFe2+Al2O44444190407
Hydrobiotite  (*)Corrensite ClayK(Mg,Fe2+)6(Si,Al)8O20(OH)4·nH2O444419049
Ilmenite  (*)CorundumFe2+Ti4+O344441905433
Magnetite  (*)SpinelFe2+Fe3+2O4444419014899
Molybdenite  (*)MolybdeniteMoS244441905800
Pargasite  (*)AmphiboleNaCa2(Mg4Al)(Si6Al2)O22(OH)24444190313
Pyrite  (*)PyriteFeS2444419039462
Pyrrhotite  (*)NickelineFe7S844441909056
Quartz  (*)QuartzSiO2444419061156
Sphalerite  (*)SphaleriteZnS444419021482
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)4444190978


1 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
vms-00874444419Silurian        246047Fornás Mine, Aríns, Santiago De Compostela, A Coruña (La Coruña), Galicia, SpainFornasMoiser et al. (2009) USGSOFR2009-1034 

SampleSource LocalityReference URL

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