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:
Frikstad 30 Feldspar Quarry, Frikstad, Iveland, Aust-Agder, Norway

Oldest recorded age at locality: 1281
Youngest recorded age at locality: 1090

mindat Locality ID: 300999
mindat URL: http://www.mindat.org/loc-300999.html

Tectonic Settings:

Total number of sublocalities beneath "Frikstad 30 Feldspar Quarry, Frikstad, Iveland, Aust-Agder, Norway": 0
Total number of bottom-level sublocalities: 0

Latitude: 58°31'7"N
Longitude: 7°52'27"E
Decimal Degree (lat, lon): 58.518611111111,7.8741666666667

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 H K Na O Si 

Elements from minerals reported directly at this locality: Al H K Na O Si 

Structural Groups for minerals in this locality: 
ClayFeldsparMicaNoneQuartz

4 IMA Minerals at location:
Albite  (*)Microcline  (*)Muscovite  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)1281109008803
Microcline  (*)FeldsparK(AlSi3O8)1281109004924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)212811090017380
Quartz  (*)QuartzSiO212811090061156



2 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
Cr-00015109010901090U-Pb cleveite  YesDavidite-(Ce)Cr14334Aust-Agder, NorwayAust-Agder, TelemarkGastil (1960)10.2475/ajs.258.1.1AJS258_1 
Bradley_2012_082128112771279±2U/Pb zircon  YesZircon  48160Frikstad, Iveland, Aust-Agder, NorwayFrikstadMcCauley 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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