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:
Crawford Co., Indiana, USA


mindat Locality ID: 31202
mindat URL: http://www.mindat.org/loc-31202.html

Tectonic Settings:

Total number of sublocalities beneath "Crawford Co., Indiana, USA": 13
Total number of bottom-level sublocalities: 12

Number of Child Localities: 12
Child Localities:
Blue River Group Outcrop Area
Cape Sandy Quarry No. 1
Cape Sandy Quarry No. 2
Crawford County Pit (Crawford County Highway Department)
Eckerty Quarry
Indiana Route 62 Roadcut
Marengo Cave
Marengo Mine & Mill
Saltpetre Cave
Temple Quarry (Mulzer Temple Quarry)
Tower Quarry (Crawford County Quarry)
Wyandotte Cave

Latitude: 38°16'12"N
Longitude: 86°22'15"W
Decimal Degree (lat, lon): 38.27,-86.370833333333

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: C Ca F Fe H Mg N O S 

Elements from minerals reported directly at this locality: C Fe H O S 

Structural Groups for minerals in this locality: 
AragoniteCalciteEpsomiteFluoriteGypsumHexahydriteMelanteriteNonePyrite

12 IMA Minerals at location:
Aragonite  (*)Calcite  (*)Dolomite  (*)Epsomite  (*)Fluorite  (*)
Gypsum  (*)Hexahydrite  (*)Hydromagnesite  (*)Melanterite  (*)Nitrocalcite  (*)
Pyrite  (*)Siderite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aragonite  (*)AragoniteCa(CO3)2213951,2139563250
Calcite  (*)CalciteCa(CO3)3213945,213951,21395627770
Dolomite  (*)NoneCaMg(CO3)22213945,2139509895
Epsomite  (*)EpsomiteMg(SO4)·7H2O1213956484
Fluorite  (*)FluoriteCaF212139459617
Gypsum  (*)GypsumCa(SO4)·2H2O2213951,2139566890
Hexahydrite  (*)HexahydriteMg(SO4)·6H2O1213956251
Hydromagnesite  (*)NoneMg5(CO3)4(OH)2·4H2O1213951341
Melanterite  (*)MelanteriteFe(SO4)·7H2O0915
Nitrocalcite  (*)NoneCa(NO3)2·4H2O121395346
Pyrite  (*)PyriteFeS2121395239462
Siderite  (*)CalciteFe(CO3)06417



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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