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:
Bear Basin, North Bend, King Co., Washington, USA


mindat Locality ID: 15288
mindat URL: http://www.mindat.org/loc-15288.html

Tectonic Settings:

Total number of sublocalities beneath "Bear Basin, North Bend, King Co., Washington, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Bear Basin Mines
Dawson Prospect

Latitude: 47°38'21"N
Longitude: 121°29'10"W
Decimal Degree (lat, lon): 47.639166666667,-121.48611111111
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: Ag Al As C Cd Cu Fe H Mn Mo Na O Pb S Sb Si Sn Zn 

Elements from minerals reported directly at this locality: Ag Al Cd Fe In Mn Na O Pb S Sb Si 

Structural Groups for minerals in this locality: 
ArsenopyriteCalciteFeldsparLillianiteMolybdeniteNonePyritePyrochloreQuartzRocksalt
SphaleriteStanniteStibniteTetrahedrite

16 IMA Minerals at location:
Albite  (*)Arsenopyrite  (*)Freibergite  (*)Galena  (*)Jamesonite  (*)
Molybdenite  (*)Pyrite  (*)Quartz  (*)Ramdohrite  (*)Rhodochrosite  (*)
Sphalerite  (*)Stannite  (*)Stibiconite  (*)Stibnite  (*)Tetrahedrite-(Zn)  (*)
Uchucchacuaite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)08803
Arsenopyrite  (*)ArsenopyriteFeAsS12845059052
Freibergite  (*)TetrahedriteAg6[Cu4Fe2]Sb4S121284505663
Galena  (*)RocksaltPbS128450524243
Jamesonite  (*)NonePb4FeSb6S141284505784
Molybdenite  (*)MolybdeniteMoS212845055800
Pyrite  (*)PyriteFeS2128450639462
Quartz  (*)QuartzSiO22284505,28450661156
Ramdohrite  (*)LillianitePb5.9Fe0.1Mn0.1In0.1Cd0.2Ag2.8Sb10.8S24034
Rhodochrosite  (*)CalciteMn(CO3)2284505,2845061711
Sphalerite  (*)SphaleriteZnS128450521482
Stannite  (*)Stannite SphaleriteCu2FeSnS41284505668
Stibiconite  (*)PyrochloreSb3+Sb5+2O6(OH)1284506446
Stibnite  (*)StibniteSb2S32284505,2845063418
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1312845055317
Uchucchacuaite  (*)LillianiteAgMnPb3Sb5S1212845055


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL
R070718Bear Basin Mines, Bear Basin, North Bend, King Co., Washington, USAhttps://rruff.info/R070718
R070348Bear Basin Mines, Bear Basin, North Bend, King Co., Washington, USAhttps://rruff.info/R070348

All locality data graciously provided by mindat.org

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