Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Posio, Lapland, Finland

Oldest recorded age at locality: 2020
Youngest recorded age at locality: 2020

mindat Locality ID: 286317
mindat URL: http://www.mindat.org/loc-286317.html

Tectonic Settings:

Total number of sublocalities beneath "Posio, Lapland, Finland": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Haarakumpu
Laivajoki
Lakisuo Complex Pegmatite

Latitude: 66°12'4"N
Longitude: 28°17'11"E
Decimal Degree (lat, lon): 66.201111111111,28.286388888889

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.

Amphibole	Apatite	Beryl	Calcite	Chalcopyrite	Clay	Feldspar	Mica	Nickeline	None
Pentlandite	Pyrite	Quartz	Spinel	Talc	Zircon

Actinolite ()*	Beryl ()*	Calcite ()*	Chalcopyrite ()*	Cobaltpentlandite ()*
Curite ()*	Dolomite ()*	Fluorapatite ()*	Magnetite ()*	Microcline ()*
Phlogopite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Talc ()*
Tremolite ()*	Zircon ()*

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 Be C Ca Co Cu F Fe H K Mg O P Pb S Si U Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Apatite Beryl Calcite Chalcopyrite Clay Feldspar Mica Nickeline None
Pentlandite Pyrite Quartz Spinel Talc Zircon

17 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	2020	2020	1	49782	3419
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			1	49783	4286
Calcite ()*	Calcite	Ca(CO₃)	2020	2020	1	49782	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			1	49781	27198
Cobaltpentlandite ()*	Pentlandite	Co₉S₈			1	49781	82
Curite ()*	None	Pb_3+x[(UO₂)₄O_4+x(OH)_3-x]₂·2H₂O			1	49783	51
Dolomite ()*	None	CaMg(CO₃)₂	2020	2020	1	49782	9895
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	49783	2740
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2020	2020	1	49782	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)			1	49783	4924
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	2020	2020	1	49782	2273
Pyrite ()*	Pyrite	FeS₂	2020	2020	2	49781,49782	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			2	49781,49783	9056
Quartz ()*	Quartz	SiO₂			2	49781,49783	61156
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	2020	2020	1	49782	3337
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2020	2020	2	49781,49782	2562
Zircon ()*	Zircon	Zr(SiO₄)	2020	2020	1	49782	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0001080	MAGMATIC STYLE: Unexposed but drilling indicates a body at least 4 km in length and some 20 m wide. ASSOCIATED SILICATE ROCKS: Glimmerite

1 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
	Jen_0001080	2020	2020	2020	U-Pb			zircon				Zircon			265769	Laivajoki, Posio, Lapland, Finland	Laivajoki	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...