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:
Sulphide Queen Mine (Sulphide Queen Body), Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA

Oldest recorded age at locality: 1563
Youngest recorded age at locality: 1325

mindat Locality ID: 219637
mindat URL: http://www.mindat.org/loc-219637.html

Tectonic Settings:

Total number of sublocalities beneath "Sulphide Queen Mine (Sulphide Queen Body), Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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: Ba C Ca Mg O S Sr 

Elements from minerals reported directly at this locality: Ba C Ca Mg O S Sr 

Structural Groups for minerals in this locality: 
AragoniteBaryteNone

3 IMA Minerals at location:
Baryte  (*)Dolomite  (*)Strontianite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)15631325011547
Dolomite  (*)NoneCaMg(CO3)21563132509895
Strontianite  (*)AragoniteSr(CO3)156313250589



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Jen_0001041MAGMATIC STYLE: Irregular sheet, dykes and veins. ASSOCIATED SILICATE ROCKS: Potassic shonkinite, syenite, granite and fenite.
Jen_0001042MAGMATIC STYLE: Irregular sheet, dykes and veins. ASSOCIATED SILICATE ROCKS: Potassic shonkinite, syenite, granite and fenite.
Jen_0001043MAGMATIC STYLE: Irregular sheet, dykes and veins. ASSOCIATED SILICATE ROCKS: Potassic shonkinite, syenite, granite and fenite.
Jen_0001044MAGMATIC STYLE: Irregular sheet, dykes and veins. ASSOCIATED SILICATE ROCKS: Potassic shonkinite, syenite, granite and fenite.
Jen_0001045MAGMATIC STYLE: Irregular sheet, dykes and veins. ASSOCIATED SILICATE ROCKS: Potassic shonkinite, syenite, granite and fenite.
Jen_0001046MAGMATIC STYLE: Irregular sheet, dykes and veins. ASSOCIATED SILICATE ROCKS: Potassic shonkinite, syenite, granite and fenite.
Michelle_0261_aSahamalite occurs in the Sulphide Queen Mine of the Mountain Pass Deposit, closely associated with parisite and bastnaesite (as described in reference).


7 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
Jen_0001041141514151415     Yes  272976Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USAMountain PassWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_0001042147514051440±35K-Ar    Yes  272976Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USAMountain PassWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_0001043142013501385±35K-Ar    Yes  272976Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USAMountain PassWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_0001044143013301380±50Rb-Sr    Yes  272976Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USAMountain PassWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_0001045153013701450±80Rb-Sr    Yes  272976Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USAMountain PassWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Jen_0001046156314831523±40U-Pb galena  YesGalena  272976Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USAMountain PassWoolley and Kjarsgaard (2008)10.4095/225115GSCOF5796 
Michelle_0261_a133913251332±7Th-PbAge of carbonatiteparisite  Yes  11616Mountain Pass Mine (Mountain Pass Deposit; Mountain Pass Mine And Mill; Bastnaesite Deposit; Bastnäsite Deposit; Mountain Pass Carbonatite), Mountain Pass, Mountain Pass District, Clark Mts (Clark Mountain Range), San Bernardino Co., California, USAMountain PassDeWitt et al. (1987) APGSA19_642Age of carbonatite. Emplacement of carbonatite was the final event in the intrusion of the 1400 ma complex. Clear parisite coexists with younger bastnaesite in sample.


SampleSource LocalityReference URL


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