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:
Somero, Southwest Finland, Finland

Oldest recorded age at locality: 1820
Youngest recorded age at locality: 1790

mindat Locality ID: 233841
mindat URL: http://www.mindat.org/loc-233841.html

Tectonic Settings:

Total number of sublocalities beneath "Somero, Southwest Finland, Finland": 6
Total number of bottom-level sublocalities: 6

Number of Child Localities: 6
Child Localities:
Faaraonhauta
Luolamäki
Penikoja (Kaitasuo)
Riukka Prospect
Satulinmäki Prospect
Tupala Deposit

Latitude: 60°41'7"N
Longitude: 23°27'29"E
Decimal Degree (lat, lon): 60.685277777778,23.458055555556

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: Ag Al As Au B Be Bi Ca Co Cs Cu F Fe H K Li Mg Mn Na Nb Ni O P Pb Rb S Sb Si Sn Te Ti W Y Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AlluauditeAnalcimeApatiteArsenicArsenopyriteBerylChalcopyriteChloriteClayCobaltite
ColumbiteCopperCorundumFeldsparGadoliniteGeocroniteLöllingiteMicaNickelineNone
Not in a structural groupPyritePyroxeneQuartzRocksaltRutileScheeliteSphaleriteSpinelTetradymite
TetrahedriteTourmalineUllmannite

51 IMA Minerals at location:
Albite  (*)Alluaudite  (*)Analcime  (*)Antimony  (*)Arsenopyrite  (*)
Aurostibite  (*)Bertrandite  (*)Beryl  (*)Bismuth  (*)Breithauptite  (*)
Cassiterite  (*)Chalcopyrite  (*)Clinosafflorite  (*)Cookeite  (*)Cordierite  (*)
Diopside  (*)Elbaite  (*)Fluorapatite  (*)Galena  (*)Geocronite  (*)
Gold  (*)Gudmundite  (*)Hedleyite  (*)Hessite  (*)Hydroxylherderite  (*)
Ilmenite  (*)Jordanite  (*)Joséite-B  (*)Laumontite  (*)Löllingite  (*)
Magnetite  (*)Maldonite  (*)Microcline  (*)Muscovite  (*)Petalite  (*)
Pollucite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Rubicline  (*)
Rutile  (*)Safflorite  (*)Samarskite-(Y)  (*)Scheelite  (*)Schorl  (*)
Silver  (*)Sphalerite  (*)Spodumene  (*)Tetrahedrite-(Zn)  (*)Ullmannite  (*)
Willyamite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)250195,501968803
Alluaudite  (*)Alluaudite   NaMnFe3+2(PO4)315019594
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O1501951627
Antimony  (*)ArsenicSb18201790150198363
Arsenopyrite  (*)ArsenopyriteFeAsS18201790250197,501989052
Aurostibite  (*)PyriteAuSb21820179015019873
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)2150194606
Beryl  (*)BerylBe3Al2Si6O18350194,50195,501964286
Bismuth  (*)ArsenicBi18201790250197,501981966
Breithauptite  (*)NickelineNiSb18201790150198175
Cassiterite  (*)RutileSnO2250195,501965171
Chalcopyrite  (*)ChalcopyriteCuFeS218201790250197,5019827198
Clinosafflorite  (*)LöllingiteCoAs21820179015019821
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)8150194181
Cordierite  (*)BerylMg2Al4Si5O181501991008
Diopside  (*)PyroxeneCaMgSi2O61501994135
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)150195520
Fluorapatite  (*)ApatiteCa5(PO4)3F1501942740
Galena  (*)RocksaltPbS18201790350197,50198,5019924243
Geocronite  (*)GeocronitePb14Sb6S2318201790150198133
Gold  (*)CopperAu18201790250197,5019830554
Gudmundite  (*)ArsenopyriteFeSbS18201790150198170
Hedleyite  (*)TetradymiteBi7Te318201790150197104
Hessite  (*)NoneAg2Te18201790150197804
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)150194119
Ilmenite  (*)CorundumFe2+Ti4+O318201790250197,501985433
Jordanite  (*)GeocronitePb14As6S2318201790150198105
Joséite-B  (*)TetradymiteBi4Te2S18201790250197,5019886
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O1501951271
Löllingite  (*)LöllingiteFeAs218201790150197762
Magnetite  (*)SpinelFe2+Fe3+2O418201790250197,5019814899
Maldonite  (*)NoneAu2Bi1820179015019888
Microcline  (*)FeldsparK(AlSi3O8)1501954924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)215019517380
Petalite  (*)Not in a structural groupLiAlSi4O10150195124
Pollucite  (*)AnalcimeCs(Si2Al)O6·nH2O150195140
Pyrite  (*)PyriteFeS218201790350197,50198,5019939462
Pyrrhotite  (*)NickelineFe7S818201790250197,501999056
Quartz  (*)QuartzSiO2350195,50196,5019961156
Rubicline  (*)FeldsparRb(AlSi3O8)1501956
Rutile  (*)RutileTiO218201790250196,501975614
Safflorite  (*)LöllingiteCoAs218201790150198317
Samarskite-(Y)  (*)ColumbiteYFe3+Nb2O8150196353
Scheelite  (*)ScheeliteCa(WO4)18201790250197,501984894
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)1501952705
Silver  (*)CopperAg1501995186
Sphalerite  (*)SphaleriteZnS18201790250197,5019921482
Spodumene  (*)PyroxeneLiAlSi2O6250195,50196688
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S131501995317
Ullmannite  (*)UllmanniteNiSbS18201790150198293
Willyamite  (*)CobaltiteCoSbS1820179015019825



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
Kristen00240618201790  gold mineralization     Au250922Satulinmäki Prospect, Somero, Southwest Finland, FinlandRiukka and Satulinmaki Gold ProspectsSaalmann et al. (2009)10.1016/j.precamres.2009.06.005PR174_53 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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