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:
Virgin Valley, Humboldt Co., Nevada, USA


mindat Locality ID: 5881
mindat URL: http://www.mindat.org/loc-5881.html

Tectonic Settings:

Total number of sublocalities beneath "Virgin Valley, Humboldt Co., Nevada, USA": 45
Total number of bottom-level sublocalities: 41

Number of Child Localities: 29
Child Localities:
April Fool Group
Becky-Mucket Claims
Black Hope Group
Black Peacock Mine (Birdlebough Mine; Royal Peacock Black No. 1 & No. 2 Lodes)
Bonanza Opal Workings (Virgin Opal; Bonanza Opal Mine; Virgin Opal Mine; Bon 1-5 Lodes; Defiance Mine)
Cloud Nine Opal Mine (WRT Cloud Nine Claim; BLM-NMC#865658)
Eddy Group
Green Fire Mine
Jo Lu 55 Opal Mine
Kokopelli Opal Mine
Lemac Stone Quarry (Owyhee Rose; Heart Of Virgin Valley Claims; Flagstone)
Lemon Meringue Mine
Lowlands
May Day Mine (May Day No. 1 & No. 2 Lodes)
Opal Negra Mine
Opal Queen Group
Pandoras Woodpile Mine
PJ Opal Mine
Rainbow Ridge Mine (Black Opal No. 1 Claim; Black Opal No. 2 Claim; Black Opal No. 3 Claim; Rincon Belle Claim; Royal Opal Claim; Pandora Claim)
Reed Mine (Dorothy Rae Claim; Nicki No. 1 Claim; MS4982)
Royal Peacock Group Mines
Seven Dreams Prospect
Swordfish Mine
Toni Fire Opal Mine (Kaleidoscope Fire Opal)
Unnamed Carnelian Deposit
Unnamed Mn Deposit
Unnamed Opal Prospect
Vaillant Mine (Hopeless Claim; Sergine Claim; Pine Cone Claim; Sunshine Claim; Jeanne Marie Claim; Charlotte's Folly Claim; Goldbrick Claim)
WRT Stonetree Group ("Dominion Opal Mine")

Latitude: 41°49'31"N
Longitude: 119°2'59"W
Decimal Degree (lat, lon): 41.825277777778,-119.04972222222
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 Ba C Ca F Fe H K Mg Mn Na O P Pb S Si Ti U V 

Elements from minerals reported directly at this locality: Al Ba C Ca F Fe H K Mn Na O P Pb S Si Ti U V 

Structural Groups for minerals in this locality: 
AmorphousAutuniteBaryteClayCoronaditeCorundumCristobaliteGypsumMeta-autuniteMordenite
NatroautuniteNonePyritePyroxeneQuartzRocksaltRutileSmectite-vermiculite

22 IMA Minerals at location:
Autunite  (*)Baryte  (*)Carnotite  (*)Cristobalite  (*)Cryptomelane  (*)
Galena  (*)Gypsum  (*)Hedenbergite  (*)Hollandite  (*)Ilmenite  (*)
Kalinite  (*)Meta-ankoleite  (*)Meta-autunite  (*)Montmorillonite  (*)Mordenite  (*)
Opal  (*)Pyrite  (*)Pyrolusite  (*)Quartz  (*)Schröckingerite  (*)
Soddyite  (*)Weeksite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O01272
Baryte  (*)BaryteBa(SO4)011547
Carnotite  (*)NoneK2(UO2)2(VO4)2·3H2O01184
Cristobalite  (*)CristobaliteSiO20453
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O161237593599
Galena  (*)RocksaltPbS024243
Gypsum  (*)GypsumCa(SO4)·2H2O3237562,237563,2375646890
Hedenbergite  (*)PyroxeneCaFe2+Si2O60741
Hollandite  (*)CoronaditeBa(Mn4+6Mn3+2)O161237593243
Ilmenite  (*)CorundumFe2+Ti4+O305433
Kalinite  (*)NoneKAl(SO4)2·11H2O054
Meta-ankoleite  (*)NatroautuniteK(UO2)(PO4)·3H2O010
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O0388
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O12375801508
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O0405
Opal  (*)AmorphousSiO2·nH2O22237562,237563,237564,237568,237569,237570,237571,237572,237573,237576,237580,237583,237584,237586,237590,237591,237594,237597,237598,237600,237601,2376052994
Pyrite  (*)PyriteFeS2039462
Pyrolusite  (*)RutileMnO203106
Quartz  (*)QuartzSiO2123759261156
Schröckingerite  (*)NoneNaCa3(UO2)(SO4)(CO3)3F·10H2O0128
Soddyite  (*)None(UO2)2(SiO4)(H2O)2044
Weeksite  (*)None(K)2(UO2)2(Si5O13)·4H2O123759442


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

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