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:
Buck Group, Gaastra, Menominee Iron Range, Iron Co., Michigan, USA


mindat Locality ID: 125667
mindat URL: http://www.mindat.org/loc-125667.html

Tectonic Settings:

Total number of sublocalities beneath "Buck Group, Gaastra, Menominee Iron Range, Iron Co., Michigan, USA": 47
Total number of bottom-level sublocalities: 34

Number of Child Localities: 4
Child Localities:
Berkshire Mine
Buck Mine
Degrasse Mine
Zimmerman Mine

Latitude: 46°3'25"N
Longitude: 88°36'36"W
Decimal Degree (lat, lon): 46.056944444444,-88.61
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 Ba C Ca Cd Cu Fe H K Mg Na O P Pb S Si U V Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BaryteCalciteChalcopyriteClayCorundumDiasporeFluoriteFritzscheiteKaoliniteMalachite
MarcasiteMeta-autuniteNonePyriteQuartzRocksaltSphaleriteStilpnomelaneWurtzite

22 IMA Minerals at location:
Baryte  (*)Bassetite  (*)Bornite  (*)Calcite  (*)Chalcocite  (*)
Chalcopyrite  (*)Dickite  (*)Galena  (*)Goethite  (*)Greenockite  (*)
Hematite  (*)Malachite  (*)Marcasite  (*)Meta-autunite  (*)Metatorbernite  (*)
Metatyuyamunite  (*)Pyrite  (*)Quartz  (*)Siderite  (*)Sphalerite  (*)
Stilpnomelane  (*)Uraninite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)122101611547
Bassetite  (*)NoneFe2+(UO2)2(PO4)2(H2O)10122101651
Bornite  (*)NoneCu5FeS412210165516
Calcite  (*)CalciteCa(CO3)122101627770
Chalcocite  (*)NoneCu2S12210165707
Chalcopyrite  (*)ChalcopyriteCuFeS2122101627198
Dickite  (*)Clay KaoliniteAl2Si2O5(OH)41221016651
Galena  (*)RocksaltPbS122101624243
Goethite  (*)DiasporeFeO(OH)8221002,221005,221006,221016,221017,221036,221038,2210457437
Greenockite  (*)WurtziteCdS1221016717
Hematite  (*)CorundumFe2O38221002,221005,221006,221016,221017,221036,221038,22104514640
Malachite  (*)MalachiteCu2(CO3)(OH)2122101612537
Marcasite  (*)MarcasiteFeS212210165674
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O1221016388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O1221016443
Metatyuyamunite  (*)FritzscheiteCa(UO2)2(VO4)2·3H2O1221016129
Pyrite  (*)PyriteFeS28221002,221005,221006,221016,221017,221036,221038,22104539462
Quartz  (*)QuartzSiO2122101661156
Siderite  (*)CalciteFe(CO3)8221002,221005,221006,221016,221017,221036,221038,2210456417
Sphalerite  (*)SphaleriteZnS122101621482
Stilpnomelane  (*)Stilpnomelane Clay(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O8221002,221005,221006,221016,221017,221036,221038,221045456
Uraninite  (*)FluoriteUO212210162718


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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