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:
Upper Browns Creek Area, Nathrop, Chaffee Co., Colorado, USA


mindat Locality ID: 159250
mindat URL: http://www.mindat.org/loc-159250.html

Tectonic Settings:

Total number of sublocalities beneath "Upper Browns Creek Area, Nathrop, Chaffee Co., Colorado, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
California Mine

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 Be Bi Ca F Fe H K Mo O S Si Te Ti U 

Elements from minerals reported directly at this locality: Bi S Te 

Structural Groups for minerals in this locality: 
AluniteBerylBranneriteClayFeldsparFluoriteMicaMolybdeniteNoneNot in a structural group
PyriteQuartzRutileSpinelStibniteTetradymiteTopaz

17 IMA Minerals at location:
Anatase  (*)Beryl  (*)Bismuthinite  (*)Brannerite  (*)Ferrimolybdite  (*)
Fluorite  (*)Jarosite  (*)Magnetite  (*)Molybdenite  (*)Molybdite  (*)
Muscovite  (*)Orthoclase  (*)Pyrite  (*)Quartz  (*)Rutile  (*)
Tetradymite  (*)Topaz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anatase  (*)Not in a structural groupTiO211856532162
Beryl  (*)BerylBe3Al2Si6O1811856534286
Bismuthinite  (*)StibniteBi2S301935
Brannerite  (*)BranneriteUTi2O61185653248
Ferrimolybdite  (*)NoneFe3+2(Mo6+O4)3·7H2O1185653345
Fluorite  (*)FluoriteCaF211856539617
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)611856532228
Magnetite  (*)SpinelFe2+Fe3+2O4118565314899
Molybdenite  (*)MolybdeniteMoS211856535800
Molybdite  (*)NoneMoO31185653140
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2118565317380
Orthoclase  (*)FeldsparK(AlSi3O8)11856532349
Pyrite  (*)PyriteFeS2118565339462
Quartz  (*)QuartzSiO2118565361156
Rutile  (*)RutileTiO211856535614
Tetradymite  (*)TetradymiteBi2Te2S0510
Topaz  (*)TopazAl2SiO4F211856531476



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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