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:
Northshore Mine (Peter Mitchell Mine; Reserve Mine; Babbitt Mine), Babbitt, Mesabi Range, St. Louis Co., Minnesota, USA


mindat Locality ID: 69089
mindat URL: http://www.mindat.org/loc-69089.html

Tectonic Settings:

Total number of sublocalities beneath "Northshore Mine (Peter Mitchell Mine; Reserve Mine; Babbitt Mine), Babbitt, Mesabi Range, St. Louis Co., Minnesota, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 47°39'44"N
Longitude: 91°56'30"W
Decimal Degree (lat, lon): 47.662222222222,-91.941666666667
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: Al B C Ca Fe H Mg Mn Na O S Si 

Elements from minerals reported directly at this locality: Al B C Ca Fe H Mg Mn Na O S Si 

Structural Groups for minerals in this locality: 
AmphiboleAxiniteCalciteClayCorundumGarnetNickelineNoneOlivinePyrite
PyroxeneQuartzSepioliteSpinel

18 IMA Minerals at location:
Actinolite  (*)Andradite  (*)Axinite-(Mn)  (*)Calcite  (*)Cummingtonite  (*)
Diopside  (*)Fayalite  (*)Ferro-actinolite  (*)Graphite  (*)Grunerite  (*)
Hedenbergite  (*)Hematite  (*)Magnetite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Riebeckite  (*)Sepiolite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)203419
Andradite  (*)GarnetCa3Fe3+2(SiO4)301534
Axinite-(Mn)  (*)AxiniteCa4Mn2+2Al4[B2Si8O30](OH)2088
Calcite  (*)CalciteCa(CO3)027770
Cummingtonite  (*)Amphibole   Mg2Mg5Si8O22(OH)20327
Diopside  (*)PyroxeneCaMgSi2O604135
Fayalite  (*)OlivineFe2+2(SiO4)0371
Ferro-actinolite  (*)Amphibole   Ca2(Mg2.5-0.0Fe2+2.5-5.0)Si8O22(OH)20129
Graphite  (*)NoneC02812
Grunerite  (*)Amphibole   Fe2+2Fe2+5Si8O22(OH)20223
Hedenbergite  (*)PyroxeneCaFe2+Si2O60741
Hematite  (*)CorundumFe2O3014640
Magnetite  (*)SpinelFe2+Fe3+2O4014899
Pyrite  (*)PyriteFeS2039462
Pyrrhotite  (*)NickelineFe7S809056
Quartz  (*)QuartzSiO2061156
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)20375
Sepiolite  (*)Sepiolite ClayMg4Si6O15(OH)2·6H2O0241


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

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