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:
Pioneer-Lilyama Mine (Lilyama Mine; Lilyama Extension Mine; Pioneer Mine; Little Emma Mine; Lilyama Copper And Gold Mine; Volo Mine), Pilot Hill, Pilot Hill District, El Dorado Co., California, USA


mindat Locality ID: 26614
mindat URL: http://www.mindat.org/loc-26614.html

Tectonic Settings:

Total number of sublocalities beneath "Pioneer-Lilyama Mine (Lilyama Mine; Lilyama Extension Mine; Pioneer Mine; Little Emma Mine; Lilyama Copper And Gold Mine; Volo Mine), Pilot Hill, Pilot Hill District, El Dorado Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 38°50'7"N
Longitude: 120°58'2"W
Decimal Degree (lat, lon): 38.835277777778,-120.96722222222
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 C Ca Cu F Fe H Mg Na O Pb S Sb Si 

Elements from minerals reported directly at this locality: Al C Ca Cu F Fe H Mg Na O Pb S Sb Si Zn 

Structural Groups for minerals in this locality: 
BrochantiteCalciteChalcanthiteChalcopyriteClinozoisiteCorundumCovelliteEpidoteMalachiteNone
Not in a structural groupPyriteQuartzRocksaltSpinelTetrahedriteVesuvianite

16 IMA Minerals at location:
Azurite  (*)Bornite  (*)Brochantite  (*)Calcite  (*)Chalcanthite  (*)
Chalcopyrite  (*)Covellite  (*)Epidote  (*)Galena  (*)Hematite  (*)
Magnetite  (*)Malachite  (*)Pyrite  (*)Quartz  (*)Tetrahedrite-(Zn)  (*)
Vesuvianite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)205509
Bornite  (*)NoneCu5FeS405516
Brochantite  (*)BrochantiteCu4(SO4)(OH)601633
Calcite  (*)CalciteCa(CO3)027770
Chalcanthite  (*)ChalcanthiteCu(SO4)·5H2O0925
Chalcopyrite  (*)ChalcopyriteCuFeS2027198
Covellite  (*)CovelliteCuS04165
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)08173
Galena  (*)RocksaltPbS024243
Hematite  (*)CorundumFe2O3014640
Magnetite  (*)SpinelFe2+Fe3+2O4014899
Malachite  (*)MalachiteCu2(CO3)(OH)2012537
Pyrite  (*)PyriteFeS2039462
Quartz  (*)QuartzSiO2061156
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1305317
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)1001395


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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