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:
Omega, Washington District (Omega District), Nevada Co., California, USA

Oldest recorded age at locality: 395
Youngest recorded age at locality: 380

mindat Locality ID: 267770
mindat URL: http://www.mindat.org/loc-267770.html

Tectonic Settings:

Total number of sublocalities beneath "Omega, Washington District (Omega District), Nevada Co., California, USA": 62
Total number of bottom-level sublocalities: 61

Number of Child Localities: 60
Child Localities:
Alta & Bingham Consolidated Quartz Mine (Alta And Bingham Cons.; Alta & Bingham Cons Qtz)
Arctic Group
Becker Quartz Mine (Becker Qtz.)
Blue Bell Quartz Mine (Blue Bell Qtz.; Blue Bell Gp.; Blue Bell Mine; German Cons.; German Mine)
Blue Jay Group
Blue Jay Quartz Mine (Blue Jay Qtz)
Celia Mine (Celia And Free Trade)
Colombia Consolidated Quartz Mine (Colombia Cons Qtz.; Columbia Group; Canon Creek Claim; Canyon Creek Claim; Waldeck Claim)
Cornucopia Quartz Mine (Cornucopia Qtz)
Cosmopolitan Ledge Mine
Croesus Quartz Mine (Croesus Qtz.)
Dal Quartz Mine (Dal Qtz)
Dee Quartz Mine (Dee Qtz.)
Diamond Creek Gravel Claim
Dinero Mining Company Mine
Don Quartz Mine (Don Qtz.)
Dutretre Group
Eagle Bird Quartz Mine (Eagle Bird Qtz.; Diamond Creek Mine; Diamond Cons.; Eagle Bird Mine; Gold Bug; Gold Bug/Sunlight Consolidated; Sunlight Consolidated; Yuba Canyon Consolidated; Yuba Canyon Cons.; Diamond Creek/Stem Winder/Etna)
El Monte Placer
Ethel Gold Mining Company Mine (Ethel Gold Mining Co.; Ethel & South Ethel; Ethel & So. Ethel)
Free Trade Quartz Mine (Free Trade Qtz)
Friendly Peace Occurrence
Fritz Meister Placer
Golden Gate Consolidated Quartz Mine (North Star; Golden Gate Con Qtz)
Hunken Consolidated Placer (Hunken Cons.)
Jokkoree Quartz Mine (Jokkoree Qtz.)
Last Chance Mine (Last Chance Quartz Mine; Last Chance Qtz)
Lindsay Mine (Big & Little Lindsay)
Live Oak Quartz Mine (Live Oak Qtz.)
Nevada Quartz Ledge Mine (Nevada Qtz Ledge)
North Star Occurrence
Nugget Placer Mine
Ocean Star Mine (Cooley)
Omega Placer Mine
Orion Consolidated Mine (Orion Cons)
Oro Placer Mine
Rattlesnake Nos. 1 & 2 Occurrence
Red Cross Consolidated Quartz Mine (Red Cross Consolidated Qtz.; Red Cross Consolidated)
Regina Quartz Mine (Regina Qtz.; Regina)
Rising Sun Quartz Mine (Rising Sun Qtz.)
Sacramento Consolidated Blue Gravel Placer (Sacramento Cons. Blue Gravel)
Salathiel Gold Quartz Mine (Salathiel Gold Qtz)
Secret Treasure Quartz Mine (Secret Treasure Qtz; Secret Treasure)
Snowflower Mine
South Yuba River Placer [3]
Star Ledge Group
Star Mining Company Mine (Star Mng. Co.; Star Ledge; Orleans; Niagara)
Starr Group Mine (Starr Gp.; Cooley Mine)
Stem Winder Mine (Etna)
Sulphuret Gold & Silver Quartz Mine (Sulphuret Gold & Silver Qtz.)
Sunset Quartz Mine (Sunset Qtz.)
Superior Placer Mine
Unidentified Au Workings [20]
Unidentified Au Workings [22]
United Banner Mine (Unite Eagle & Macon; United Egle And Macn)
Waldeck Consolidated Quartz Mine (Waldeck Cons. Qtz.; Washington)
Washington Chief Consolidated Mine (Washington Chief Con.; Washington Chief Ledge; Jefferson Mine)
Washington Consolidated Mine (Washington Cons.; Blue Bell Group; Sunset; German Cons.; German Consolidated/Dee; Don; And Dale)
Yuba Consolidated Mine (Yuba Cons.; Yuba Claim; Central And Gray Eagle Group; Central & Gray Eagle Gp.; Hathaway Ledge/Marietta/Mayflower; Rising Sun/Lindsay/Dinero Mining Company)
Yuba Mine (Yuba Consolidated; Yuba Quartz Mine; Yuba Qtz; Yuba Claim; Yuba River)

Latitude: 39°21'4"N
Longitude: 120°43'5"W
Decimal Degree (lat, lon): 39.351111111111,-120.71805555556

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: Au Ba C Ca Fe O Pb S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
BaryteCalciteCopperNickelineNonePyriteQuartzRocksaltSphalerite

8 IMA Minerals at location:
Baryte  (*)Calcite  (*)Galena  (*)Gold  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)116640111547
Calcite  (*)CalciteCa(CO3)116640127770
Galena  (*)RocksaltPbS5166346,166348,166362,166371,16640624243
Gold  (*)CopperAu39538049166345,166346,166347,166348,166349,166350,166351,166352,166353,166354,166355,166356,166357,166359,166360,166361,166362,166364,166365,166368,166370,166371,166373,166374,166376,166377,166378,166379,166380,166382,166383,166384,166386,166387,166388,166389,166391,166392,166393,166394,166396,166399,166400,166401,166402,166403,166404,166405,16640630554
Pyrite  (*)PyriteFeS25166346,166348,166362,166371,16640639462
Pyrrhotite  (*)NickelineFe7S811664069056
Quartz  (*)QuartzSiO243166345,166346,166347,166348,166349,166350,166351,166352,166353,166354,166355,166356,166357,166359,166360,166361,166362,166364,166365,166368,166370,166371,166373,166374,166377,166379,166382,166383,166384,166386,166387,166391,166392,166393,166394,166399,166400,166401,166402,166403,166404,166405,16640661156
Sphalerite  (*)SphaleriteZnS4166346,166362,166371,16640621482



3 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
USGS-U-Th-Pb-02228_206_238380380380206_238 zircon   Zircon  84787Superior Placer Mine, Omega, Washington District (Omega District), Nevada Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-02228_207_206395395395207_206 zircon   Zircon  84787Superior Placer Mine, Omega, Washington District (Omega District), Nevada Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-02228_207_235381381381207_235 zircon   Zircon  84787Superior Placer Mine, Omega, Washington District (Omega District), Nevada Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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