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:
Bergen Park Area, Jefferson Co., Colorado, USA


mindat Locality ID: 133149
mindat URL: http://www.mindat.org/loc-133149.html

Tectonic Settings:

Total number of sublocalities beneath "Bergen Park Area, Jefferson Co., Colorado, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Creswell Mine
Interstate Highway 70 El Rancho Exit Occurrence
Park Lode
Unnamed Pegmatite

Latitude: 39°42'22"N
Longitude: 105°21'47"W
Decimal Degree (lat, lon): 39.706111111111,-105.36305555556
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 As Be C Ca Cu F Fe H Mg Mn Na O P Pb S Si Ti Zn 

Elements from minerals reported directly at this locality: Al Mg O Si 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleApatiteArsenopyriteBerylCalciteChalcopyriteEpidoteHumiteNone
Not in a structural groupPrehnitePyroxeneQuartzRocksaltRutileSphaleriteSpinelTitaniteTopaz

28 IMA Minerals at location:
Actinolite  (*)Allophane  (*)Anthophyllite  (*)Arsenopyrite  (*)Beryl  (*)
Calcite  (*)Chalcopyrite  (*)Chondrodite  (*)Clinohumite  (*)Cordierite  (*)
Diopside  (*)Edenite  (*)Enstatite  (*)Fluorapatite  (*)Gahnite  (*)
Galena  (*)Humite  (*)Magnetite  (*)Piemontite  (*)Prehnite  (*)
Quartz  (*)Rutile  (*)Sillimanite  (*)Sphalerite  (*)Spinel  (*)
Titanite  (*)Topaz  (*)Tremolite  (*)
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)211905383419
Allophane  (*)AllophaneAl2O3(SiO2)1.3-2.0·2.5-3.0H2O1190538470
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)21190538718
Arsenopyrite  (*)ArsenopyriteFeAsS11905409052
Beryl  (*)BerylBe3Al2Si6O1811905384286
Calcite  (*)CalciteCa(CO3)119053827770
Chalcopyrite  (*)ChalcopyriteCuFeS2119053827198
Chondrodite  (*)HumiteMg5(SiO4)2F21190538285
Clinohumite  (*)HumiteMg9(SiO4)4F21190538236
Cordierite  (*)BerylMg2Al4Si5O1801008
Diopside  (*)PyroxeneCaMgSi2O611905384135
Edenite  (*)AmphiboleNaCa2Mg5(Si7Al)O22(OH)21190538160
Enstatite  (*)PyroxeneMg2Si2O61190538944
Fluorapatite  (*)ApatiteCa5(PO4)3F11905382740
Gahnite  (*)SpinelZnAl2O41190538445
Galena  (*)RocksaltPbS119053824243
Humite  (*)HumiteMg7(SiO4)3F2119053880
Magnetite  (*)SpinelFe2+Fe3+2O4119054114899
Piemontite  (*)EpidoteCa2(Al2Mn3+)[Si2O7][SiO4]O(OH)1190538260
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)211905381898
Quartz  (*)QuartzSiO2119053861156
Rutile  (*)RutileTiO211905385614
Sillimanite  (*)Not in a structural groupAl2SiO511905381516
Sphalerite  (*)SphaleriteZnS119053821482
Spinel  (*)SpinelMgAl2O411905381934
Titanite  (*)TitaniteCaTi(SiO4)O2190538,1905394899
Topaz  (*)TopazAl2SiO4F211905381476
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)211905382562


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

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