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:
La Plata District (California District), Grand Co., Colorado, USA


mindat Locality ID: 49896
mindat URL: http://www.mindat.org/loc-49896.html

Tectonic Settings:

Total number of sublocalities beneath "La Plata District (California District), Grand Co., Colorado, USA": 10
Total number of bottom-level sublocalities: 10

Number of Child Localities: 10
Child Localities:
Iron Creek Occurrence
La Plata Williams Fork
Milliken Mine
Mt. Vasquez; St. Louis; Milliken Occurrence
Oro Fino Mine (Bobtail Mine)
Ready Cash
Unknown Silver (Bobtail Mine; MRDS - 10118033)
Unknown Silver (Bobtail Mine; MRDS - 10142527)
Unknown Silver (Bobtail Mine; MRDS - 10215456)
Unknown Silver (Bobtail Mine; MRDS - 10239734)

Latitude: 39°46'49"N
Longitude: 105°54'22"W
Decimal Degree (lat, lon): 39.780277777778,-105.90611111111
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: Ag Al Ca Cu Fe H Mg Mo O Pb S Sb Si Ti Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcopyriteClayClinozoisiteCopperEpidoteMolybdeniteNoneOlivinePyritePyroxene
QuartzRocksaltSerpentineSphaleriteSpinelTetrahedriteTitanite

16 IMA Minerals at location:
Antigorite  (*)Chalcopyrite  (*)Chrysotile  (*)Clinozoisite  (*)Diopside  (*)
Forsterite  (*)Galena  (*)Magnetite  (*)Molybdenite  (*)Pyrite  (*)
Quartz  (*)Silver  (*)Sphalerite  (*)Tetrahedrite-(Zn)  (*)Titanite  (*)
Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)41189304708
Chalcopyrite  (*)ChalcopyriteCuFeS22189303,18930427198
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41189304951
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)11893041025
Diopside  (*)PyroxeneCaMgSi2O611893044135
Forsterite  (*)OlivineMg2(SiO4)11893041188
Galena  (*)RocksaltPbS3189303,189304,18930624243
Magnetite  (*)SpinelFe2+Fe3+2O4118930414899
Molybdenite  (*)MolybdeniteMoS211893015800
Pyrite  (*)PyriteFeS22189301,18930439462
Quartz  (*)QuartzSiO2118930461156
Silver  (*)CopperAg11893055186
Sphalerite  (*)SphaleriteZnS3189303,189304,18930621482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1311893065317
Titanite  (*)TitaniteCaTi(SiO4)O11893044899
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)11893041025


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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