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:
Krokom, Jämtland County, Sweden

mindat Locality ID: 22566
mindat URL: http://www.mindat.org/loc-22566.html

Tectonic Settings:

Total number of sublocalities beneath "Krokom, Jämtland County, Sweden": 17
Total number of bottom-level sublocalities: 12

Number of Child Localities: 5
Child Localities:
Alsen
Hotagen
Lill-Juthatten Uranium Deposit (Lilljuthatten)
Offerdal
Rönnöfors

Latitude: 63°41'57"N
Longitude: 13°53'45"E
Decimal Degree (lat, lon): 63.699166666667,13.895833333333

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.

Calcite	Chalcopyrite	Clay	Clinozoisite	Corundum	Epidote	Fluorite	Mica	Monazite	Nickeline
None	Not in a structural group	Pyrite	Quartz	Rocksalt	Rutile	Sphalerite	Spinel	Titanite	Tourmaline
Zircon

Anatase ()*	Boltwoodite ()*	Calcite ()*	Chalcopyrite ()*	Clinozoisite ()*
Coffinite ()*	Epidote ()*	Fluorite ()*	Galena ()*	Graphite ()*
Huttonite ()*	Ilmenite ()*	Magnetite ()*	Muscovite ()*	Uranophane-β ()*
Pyrite ()*	Pyrrhotite ()*	Quartz ()*	Rutile ()*	Schorl ()*
Sphalerite ()*	Thorite ()*	Titanite ()*	Uraninite ()*	Uranophane-α ()*
Vandendriesscheite ()*	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 B C Ca Cu F Fe H K Na O Pb S Si Th Ti U Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Chalcopyrite Clay Clinozoisite Corundum Epidote Fluorite Mica Monazite Nickeline
None Not in a structural group Pyrite Quartz Rocksalt Rutile Sphalerite Spinel Titanite Tourmaline
Zircon

27 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Anatase ()*	Not in a structural group	TiO₂	1	111552	2162
Boltwoodite ()*	None	(K,Na)(UO₂)(SiO₃OH)·1.5H₂O	2	111547,111553	67
Calcite ()*	Calcite	Ca(CO₃)	1	111547	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2	111554,111556	27198
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1	111552	1025
Coffinite ()*	Zircon	U(SiO₄)·nH₂O	1	111547	566
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	2	111547,111552	8173
Fluorite ()*	Fluorite	CaF₂	4	111547,111552,111554,111556	9617
Galena ()*	Rocksalt	PbS	3	111547,111554,111556	24243
Graphite ()*	None	C	3	111551,111554,111556	2812
Huttonite ()*	Monazite	Th(SiO₄)	1	111547	37
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1	111552	5433
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	3	111552,111554,111556	14899
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2	111547,111552	17380
Uranophane-β ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	1	111553	144
Pyrite ()*	Pyrite	FeS₂	2	111554,111556	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	2	111554,111556	9056
Quartz ()*	Quartz	SiO₂	5	111546,111547,111548,111551,111552	61156
Rutile ()*	Rutile	TiO₂	1	111552	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	111548	2705
Sphalerite ()*	Sphalerite	ZnS	3	111548,111554,111556	21482
Thorite ()*	Zircon	Th(SiO₄)	2	111547,111552	1006
Titanite ()*	Titanite	CaTi(SiO₄)O	2	111547,111552	4899
Uraninite ()*	Fluorite	UO₂	1	111547	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	3	111547,111552,111553	890
Vandendriesscheite ()*	None	Pb_1.6(UO₂)₁₀O₆(OH)₁₁·11H₂O	1	111547	52
Zircon ()*	Zircon	Zr(SiO₄)	1	111552	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...