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

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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.

Clay	Feldspar	Mica	None	Quartz

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:
Clay Feldspar Mica None Quartz

4 IMA Minerals at location:

Albite ()*	Microcline ()*	Muscovite ()*	Quartz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1281	1090	8803
Microcline ()*	Feldspar	K(AlSi₃O₈)	1281	1090	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1281	1090	17380
Quartz ()*	Quartz	SiO₂	1281	1090	61156

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Cr-00015	1090	1090	1090	U-Pb			cleveite			Yes		Davidite-(Ce)	Cr	14334	Aust-Agder, Norway	Aust-Agder, Telemark	Gastil (1960)	10.2475/ajs.258.1.1	AJS258_1
	Bradley_2012_082	1281	1277	1279±2	U/Pb			zircon			Yes	Zircon			48160	Frikstad, Iveland, Aust-Agder, Norway	Frikstad	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...