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:
Tvedestrand, Aust-Agder, Norway

Oldest recorded age at locality: 1105
Youngest recorded age at locality: 1083

mindat Locality ID: 12430
mindat URL: http://www.mindat.org/loc-12430.html

Tectonic Settings:

Total number of sublocalities beneath "Tvedestrand, Aust-Agder, Norway": 91
Total number of bottom-level sublocalities: 76

Number of Child Localities: 35
Child Localities:
Amtmannsvingen
Auselmyra
Bleikvann
Bronheiene
Eidboknuten Feldspar Quarry
Fagerhei (Fagehei)
Gladstad
Gruvedalen
Gruvedalen II
Gruveheia
Haneholmen
Holt
Holte
Laget
Lauvland Mines
Liheia
Lilleholt
Lindlandstjenn
Lundeheiane
Lyngør
Midtbø (Midbø)
Nevestad Area
Nevestadheia
Østerå
Rangleåsen
Rosseland 3
Rosseland 4
Sandøya
Skjerkholtdalen
Snaresund
Solbutjernane
Stokkebo Quartz Quarry
Tangen
Tollaugskjerr
Ulevågkilen

Latitude: 58°38'2"N
Longitude: 8°55'39"E
Decimal Degree (lat, lon): 58.633888888889,8.9275
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 B C Ca Cu Fe H K Mg Na Nb Ni O P S Si Th Ti U Y Zr 

Elements from minerals reported directly at this locality: Al Cu Fe O S Si 

Structural Groups for minerals in this locality: 
AmphiboleArsenopyriteBerylCalciteChalcopyriteClayColumbiteCopperCorundumDumortierite
FeldsparFluoriteGarnetMicaNickelineNoneNot in a structural groupPentlanditePrehnitePyrite
PyroxeneQuartzRutileSapphirineSpinelSulphurTalcTitaniteZircon

40 IMA Minerals at location:
Albite  (*)Almandine  (*)Arsenopyrite  (*)Bornite  (*)Calcite  (*)
Chalcocite  (*)Chalcopyrite  (*)Cordierite  (*)Corundum  (*)Diopside  (*)
Dumortierite  (*)Enstatite  (*)Gedrite  (*)Graphite  (*)Hematite  (*)
Hercynite  (*)Ilmenite  (*)Magnetite  (*)Microcline  (*)Muscovite  (*)
Pentlandite  (*)Phlogopite  (*)Prehnite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Rutile  (*)Samarskite-(Y)  (*)Sapphirine  (*)Sillimanite  (*)
Silver  (*)Spinel  (*)Sulphur  (*)Talc  (*)Thorite  (*)
Titanite  (*)Uraninite  (*)Violarite  (*)Xenotime-(Y)  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)11051083390807,90840,908458803
Almandine  (*)GarnetFe2+3Al2(SiO4)31105108302353
Arsenopyrite  (*)ArsenopyriteFeAsS110510831907839052
Bornite  (*)NoneCu5FeS41105108305516
Calcite  (*)CalciteCa(CO3)1105108319080727770
Chalcocite  (*)NoneCu2S110510831908625707
Chalcopyrite  (*)ChalcopyriteCuFeS21105108319084427198
Cordierite  (*)BerylMg2Al4Si5O1811051083790776,90784,90835,90845,90861,90862,908641008
Corundum  (*)CorundumAl2O311051083390784,90847,908611797
Diopside  (*)PyroxeneCaMgSi2O611051083290844,908464135
Dumortierite  (*)DumortieriteAlAl6BSi3O1811051083190862231
Enstatite  (*)PyroxeneMg2Si2O611051083190861944
Gedrite  (*)Amphibole   Mg2(Mg3Al2)(Si6Al2)O22(OH)211051083290784,90861178
Graphite  (*)NoneC110510831908412812
Hematite  (*)CorundumFe2O311051083290807,9084514640
Hercynite  (*)SpinelFe2+Al2O411051083290784,90861407
Ilmenite  (*)CorundumFe2+Ti4+O311051083490815,90844,90847,908615433
Magnetite  (*)SpinelFe2+Fe3+2O411051083390815,90847,9086114899
Microcline  (*)FeldsparK(AlSi3O8)110510831908074924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)21105108319080717380
Pentlandite  (*)Pentlandite(Ni,Fe)9S8110510831908441512
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)2110510831908472273
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)2110510831908621898
Pyrite  (*)PyriteFeS21105108319078339462
Pyrrhotite  (*)NickelineFe7S811051083390840,90844,908469056
Quartz  (*)QuartzSiO211051083690783,90807,90815,90840,90845,9086261156
Rutile  (*)RutileTiO211051083590777,90840,90847,90861,908625614
Samarskite-(Y)  (*)ColumbiteYFe3+Nb2O811051083190840353
Sapphirine  (*)SapphirineMg4(Mg3Al9)O4[Si3Al9O36]11051083390784,90847,90861129
Sillimanite  (*)Not in a structural groupAl2SiO5110510831908081516
Silver  (*)CopperAg110510831908245186
Spinel  (*)SpinelMgAl2O411051083290847,908611934
Sulphur  (*)SulphurS110510831908122045
Talc  (*)Clay TalcMg3Si4O10(OH)2110510831908623337
Thorite  (*)ZirconTh(SiO4)110510831907771006
Titanite  (*)TitaniteCaTi(SiO4)O110510831908394899
Uraninite  (*)FluoriteUO2110510831907772718
Violarite  (*)SpinelFeNi2S411051083190844380
Xenotime-(Y)  (*)ZirconY(PO4)11051083190777939
Zircon  (*)ZirconZr(SiO4)11051083290815,908455251


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
Bradley_2012_118110510831094±11U/Pb euxenite     12430Tvedestrand, Aust-Agder, NorwayTvedestrandMcCauley and Bradley (2014)10.3749/canmin.52.2.183CM52_183 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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