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:
Risøya, Langesundsfjorden, Porsgrunn, Telemark, Norway


mindat Locality ID: 13735
mindat URL: http://www.mindat.org/loc-13735.html

Tectonic Settings:

Total number of sublocalities beneath "Risøya, Langesundsfjorden, Porsgrunn, Telemark, Norway": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Risøya S
Risøya SW

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 As Be C Ca Cl F Fe H K Mn Na Nb O S Si Ti Zn Zr 

Elements from minerals reported directly at this locality: Al As Be Ca Cl F Fe H K Na O S Si Ti Zr 

Structural Groups for minerals in this locality: 
ArsenopyriteCalciteCancrinite-sodaliteClayCorundumDiasporeEudialyteFluoriteLöllingiteMica
NoneSodaliteSphaleriteSpinelTitaniteTridymiteWöhleriteZircon

19 IMA Minerals at location:
Arsenopyrite  (*)Calcite  (*)Diaspore  (*)Eudialyte  (*)Eudidymite  (*)
Fluorite  (*)Gibbsite  (*)Leucophanite  (*)Löllingite  (*)Magnetite  (*)
Muscovite  (*)Nepheline  (*)Pyrophanite  (*)Rosenbuschite  (*)Sodalite  (*)
Sphalerite  (*)Titanite  (*)Wöhlerite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenopyrite  (*)ArsenopyriteFeAsS09052
Calcite  (*)CalciteCa(CO3)19391027770
Diaspore  (*)DiasporeAlO(OH)193910481
Eudialyte  (*)EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)20182
Eudidymite  (*)NoneNa2Be2Si6O15·H2O042
Fluorite  (*)FluoriteCaF209617
Gibbsite  (*)NoneAl(OH)3193910504
Leucophanite  (*)NoneNaCaBeSi2O6F055
Löllingite  (*)LöllingiteFeAs2193910762
Magnetite  (*)SpinelFe2+Fe3+2O4014899
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2017380
Nepheline  (*)TridymiteNa3K(Al4Si4O16)0884
Pyrophanite  (*)CorundumMn2+TiO3193910244
Rosenbuschite  (*)NoneCa6Zr2Na6ZrTi(Si2O7)4(OF)2F419391042
Sodalite  (*)Cancrinite-sodalite SodaliteNa4(Si3Al3)O12Cl193910444
Sphalerite  (*)SphaleriteZnS19391021482
Titanite  (*)TitaniteCaTi(SiO4)O04899
Wöhlerite  (*)WöhleriteNa2Ca4Zr(Nb,Ti)(Si2O7)2(O,F)419391083
Zircon  (*)ZirconZr(SiO4)05251



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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