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:
Red Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USA

Oldest recorded age at locality: 161
Youngest recorded age at locality: 161

mindat Locality ID: 210999
mindat URL: http://www.mindat.org/loc-210999.html

Tectonic Settings:

Total number of sublocalities beneath "Red Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USA": 19
Total number of bottom-level sublocalities: 18

Number of Child Localities: 18
Child Localities:
Acme Lode Claim (Acme Lode)
Black Wonder Prospect (Unnamed Location)
Del Puerto Creek
Diamond-Silver Group
Ed Kelley Prospect
Ferraro Prospect (Winship Properties)
Fidelity Deposit
Jones Group (Jones Property; Jones Group Nos.1-9; Jones Deposits East - Iⅈ Jones Deposits West - No. III; IV; V)
Keller Brothers Prospect
Kelley Prospect
Mammouth Mine (Mammoth Mine)
Number Six-White Queen Group
Security Mine (Security Deposit)
Sherlock Mine
Unnamed Hydromagnesite Occurrence [1]
Western Magnesite Company Mine
Western Mines (Western Magnesite Mine)
Winship Mine

Latitude: 37°24'53"N
Longitude: 121°28'41"W
Decimal Degree (lat, lon): 37.414722222222,-121.47805555556

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 Cr Fe H Mg Mn O Si 

Elements from minerals reported directly at this locality: C Fe O 

Structural Groups for minerals in this locality: 
CalciteClayClinozoisiteDiasporeEpidoteNoneQuartzSpinel

9 IMA Minerals at location:
Bementite  (*)Chromite  (*)Clinozoisite  (*)Goethite  (*)Hydromagnesite  (*)
Magnesite  (*)Quartz  (*)Rhodochrosite  (*)Siderite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Bementite  (*)ClayMn7Si6O15(OH)81176096173
Chromite  (*)SpinelFe2+Cr2O411760943902
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)11760911025
Goethite  (*)DiasporeFeO(OH)11760967437
Hydromagnesite  (*)NoneMg5(CO3)4(OH)2·4H2O1176103341
Magnesite  (*)CalciteMg(CO3)6176092,176095,176100,176101,176102,1761051487
Quartz  (*)QuartzSiO2117609861156
Rhodochrosite  (*)CalciteMn(CO3)2176088,1760961711
Siderite  (*)CalciteFe(CO3)16116106417



2 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
podchrome-00019161161Middle Jurassic (161.13±0.11, 161.167±0.093 Ma, CA-TIMS, zircon in plagiogranite)       Cr92379Western Magnesite Company Mine, Red Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USAWestern Magnesite CompanyMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00020161161Middle Jurassic (161.13±0.11, 161.167±0.093 Ma, CA-TIMS, zircon in plagiogranite)       Cr92386Winship Mine, Red Mountain, Black Wonder District, Diablo Range, Santa Clara Co., California, USAWinship PropertiesMoiser et al. (2012) USGSSIR2012_5157 


SampleSource LocalityReference URL


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