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:
Siilinjärvi, Northern Savonia, Finland

Oldest recorded age at locality: 2615
Youngest recorded age at locality: 1810

mindat Locality ID: 284415
mindat URL: http://www.mindat.org/loc-284415.html

Tectonic Settings:

Total number of sublocalities beneath "Siilinjärvi, Northern Savonia, Finland": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Siilinjärvi Mine

Latitude: 63°6'43"N
Longitude: 27°43'59"E
Decimal Degree (lat, lon): 63.111944444444,27.733055555556

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.

Aeschynite	Amphibole	Aragonite	Baryte	Calcite	Chalcopyrite	Clay	Covellite	Cubanite	Mica
Monazite	Nickeline	None	Pyrite	Serpentine	Spinel	Valleriite	Wurtzite	Zircon

Antigorite ()*	Baryte ()*	Barytolamprophyllite ()*	Bornite ()*	Calcite ()*
Chalcocite ()*	Chalcopyrite ()*	Covellite ()*	Cubanite ()*	Dolomite ()*
Magnetite ()*	Monazite-(Ce) ()*	Nioboaeschynite-(Ce) ()*	Phlogopite ()*	Pyrite ()*
Pyrrhotite ()*	Richterite ()*	Strontianite ()*	Tetraferriphlogopite ()*	Valleriite ()*
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 Ba C Ca Ce Cu Fe H K Mg Na Nb O P S Si Sr Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aeschynite Amphibole Aragonite Baryte Calcite Chalcopyrite Clay Covellite Cubanite Mica
Monazite Nickeline None Pyrite Serpentine Spinel Valleriite Wurtzite Zircon

21 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
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	2615	1810	1	49978	708
Baryte ()*	Baryte	Ba(SO₄)	2615	1810	1	49978	11547
Barytolamprophyllite ()*	None	(BaK)Ti₂Na₃Ti(Si₂O₇)₂O₂(OH)₂	2615	1810	1	49978	21
Bornite ()*	None	Cu₅FeS₄	2615	1810	1	49978	5516
Calcite ()*	Calcite	Ca(CO₃)	2615	1810	1	49978	27770
Chalcocite ()*	None	Cu₂S	2615	1810	1	49978	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2615	1810	1	49978	27198
Covellite ()*	Covellite	CuS	2615	1810	1	49978	4165
Cubanite ()*	Cubanite Wurtzite	CuFe₂S₃	2615	1810	1	49978	802
Dolomite ()*	None	CaMg(CO₃)₂	2615	1810	1	49978	9895
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	2615	1810	1	49978	14899
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	2615	1810	1	49978	945
Nioboaeschynite-(Ce) ()*	Aeschynite	(Ce,Ca)(Nb,Ti)₂(O,OH)₆	2615	1810	1	49978	17
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1890	1810	1	49978	2273
Pyrite ()*	Pyrite	FeS₂	2615	1810	1	49978	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2615	1810	1	49978	9056
Richterite ()*	Amphibole	Na(NaCa)Mg₅Si₈O₂₂(OH)₂	2320	2240	1	49978	148
Strontianite ()*	Aragonite	Sr(CO₃)	2615	1810	1	49978	589
Tetraferriphlogopite ()*	Mica	KMg₃(Si₃Fe³⁺)O₁₀(OH)₂	2615	1810	1	49978	27
Valleriite ()*	Valleriite	2[(Fe,Cu)S]·1.53[(Mg,Al)(OH)₂]	2615	1810	1	49978	237
Zircon ()*	Zircon	Zr(SiO₄)	2615	2603	1	49978	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0001099	MAGMATIC STYLE: A 16 km long body of carbonatite, glimmerite and syenite, which may extend to 22 km, with a maximum width of about 1 km. It is tabular in form with a 70-90º dip ASSOCIATED SILICATE ROCKS: Glimmerite, syenite, fenite and lamprophyre dykes.
Jen_0001100	MAGMATIC STYLE: A 16 km long body of carbonatite, glimmerite and syenite, which may extend to 22 km, with a maximum width of about 1 km. It is tabular in form with a 70-90º dip ASSOCIATED SILICATE ROCKS: Glimmerite, syenite, fenite and lamprophyre dykes.
Jen_0001101	MAGMATIC STYLE: A 16 km long body of carbonatite, glimmerite and syenite, which may extend to 22 km, with a maximum width of about 1 km. It is tabular in form with a 70-90º dip ASSOCIATED SILICATE ROCKS: Glimmerite, syenite, fenite and lamprophyre dykes.

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Jen_0001099	2615	2603	2609±6	U-Pb	zircon	Zircon	22948	Siilinjärvi Mine, Siilinjärvi, Northern Savonia, Finland	Siilinjarvi	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0001100	1890	1810	1850±40	K-Ar	phlogopite	Phlogopite	22948	Siilinjärvi Mine, Siilinjärvi, Northern Savonia, Finland	Siilinjarvi	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0001101	2320	2240	2280±40	K-Ar	richterite	Richterite	22948	Siilinjärvi Mine, Siilinjärvi, Northern Savonia, Finland	Siilinjarvi	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
ree-00347	2580	2580	Late Archean-- 2580 (U-Pb)	U-Pb			22948	Siilinjärvi Mine, Siilinjärvi, Northern Savonia, Finland	Siilinjarvi	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...