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:
Los Cobalt Mines, Los, Ljusdal, Gävleborg County, Sweden

Oldest recorded age at locality: 1900
Youngest recorded age at locality: 1870

mindat Locality ID: 214945
mindat URL: http://www.mindat.org/loc-214945.html

Tectonic Settings:

Total number of sublocalities beneath "Los Cobalt Mines, Los, Ljusdal, Gävleborg County, Sweden": 0
Total number of bottom-level sublocalities: 0

Latitude: 61°44'31"N
Longitude: 15°9'22"E
Decimal Degree (lat, lon): 61.741944444444,15.156111111111
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: As Ba Bi C Ca Co Cu F Fe H Ni O S Si U 

Elements from minerals reported directly at this locality: As Ba Bi C Ca Co Cu F Fe H Ni O S Si U 

Structural Groups for minerals in this locality: 
ArsenopyriteBaryteCalciteChalcopyriteCobaltiteFluoriteMarcasiteNickelineNonePyrite
QuartzStibniteVivianite

14 IMA Minerals at location:
Annabergite  (*)Arsenopyrite  (*)Baryte  (*)Bismuthinite  (*)Calcite  (*)
Chalcopyrite  (*)Cobaltite  (*)Fluorite  (*)Marcasite  (*)Gersdorffite-Pa3  (*)
Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Uraninite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Annabergite  (*)VivianiteNi3(AsO4)2·8H2O190018700445
Arsenopyrite  (*)ArsenopyriteFeAsS1900187009052
Baryte  (*)BaryteBa(SO4)19001870011547
Bismuthinite  (*)StibniteBi2S31900187001935
Calcite  (*)CalciteCa(CO3)19001870027770
Chalcopyrite  (*)ChalcopyriteCuFeS219001870027198
Cobaltite  (*)CobaltiteCoAsS190018700966
Fluorite  (*)FluoriteCaF21900187009617
Marcasite  (*)MarcasiteFeS21900187005674
Gersdorffite-Pa3  (*)PyriteNiAsS190018700767
Pyrite  (*)PyriteFeS219001870039462
Pyrrhotite  (*)NickelineFe7S81900187009056
Quartz  (*)QuartzSiO219001870061156
Uraninite  (*)FluoriteUO21900187002718


1 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
MD29_150_Los190018701870-1900U-Pbage of volcanic and early orogenic intrusives   Yes  3159Los, Ljusdal, Gävleborg County, SwedenLos mining districtHallberg (1994)10.1007/BF00191512MD29_150U-Pb zircon dating of volcanic rocks and early orogenic intrusives in the Los, Bergslagen, and Skellefte districts yields ages of 1.87-1.90 Ga (Welin et al, 1980, Åberg et al. 1984; Åberg and Strömberg 1984; Wilson et al. 1985; Welin 1987; Claesson and Lundqvist 1990). Dating ofvo1canic rocks in central and southern Finland have also yielded U-Pb zircon ages of 1.87-1.90 Ga (Ah o 1979; Helovuori 1979; Patchett and Kouvo 1986; Welin 1987). This indicates that deposition of vo1canic rocks occurred over a time interval of about 30 M yrs in the central part of the Baltic Shield.

SampleSource LocalityReference URL

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