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:
Grants Pass District, Josephine Co., Oregon, USA

Oldest recorded age at locality: 163
Youngest recorded age at locality: 163

mindat Locality ID: 66180
mindat URL: http://www.mindat.org/loc-66180.html

Tectonic Settings:

Total number of sublocalities beneath "Grants Pass District, Josephine Co., Oregon, USA": 33
Total number of bottom-level sublocalities: 33

Number of Child Localities: 33
Child Localities:
Billy Blue Mine
Burns Prospect No. 2 (Ramp No. 141)
Centennial Mine (Columbian Mine)
Chapin Occurrence
Chrome Prospect (MRDS - 10053331)
Chrome Prospect (MRDS - 10053349)
Chromite Occurrence (MRDS - 10032191)
Chromite Occurrence (MRDS - 10043326)
Chromite Occurrence (MRDS - 10201850)
Dry Diggings Placer (Canyon Dry Diggings)
Gold Chief Mine
Gold Star Mine
Granite Hill Mine (Ida Mine)
Grouse Mountain Mine
Hamlin Occurrence
Hidden Treasure Claims (Ten Spot Claim)
Hill Prospect
Jewett Mine
Juliano Occurrence
Little Pickett Creek Occurrence
Lyons Wood Prospect
May Queen Mine
Molybdenum Occurrence (MRDS - 10036453)
Molybdenum Occurrence (MRDS - 10036490)
Murray Mine (Britton Manganese)
Postem Prospect
Red Jacket Claim (Oregon Gold Mines)
Sexton Mountain Chromite (Sexton Chromite)
Snook Occurrence
Spector Occurrence
Unnamed Chromite Occurrence (MRDS - 10225442)
Unnamed Gold Prospect (MRDS - 10201476)
Unnamed Placer (MRDS - 10225889)

Latitude: 42°32'49"N
Longitude: 123°25'32"W
Decimal Degree (lat, lon): 42.546944444444,-123.42555555556

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 Au Bi C Ca Cr Cu Fe H Hg Mn Mo O Pb S Sb Si Te 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneArsenopyriteCalciteChalcopyriteCopperMalachiteMeloniteMolybdeniteNickelineNone
PyriteQuartzRhodoniteRocksaltScheeliteSpinelStibniteTetradymite

21 IMA Minerals at location:
Altaite  (*)Arsenopyrite  (*)Bornite  (*)Calcite  (*)Chalcopyrite  (*)
Chromite  (*)Chrysocolla  (*)Cinnabar  (*)Galena  (*)Gold  (*)
Magnetite  (*)Malachite  (*)Molybdenite  (*)Powellite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Rhodonite  (*)Stibnite  (*)Sylvanite  (*)
Tetradymite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Altaite  (*)RocksaltPbTe1259714489
Arsenopyrite  (*)ArsenopyriteFeAsS12597099052
Bornite  (*)NoneCu5FeS412597235516
Calcite  (*)CalciteCa(CO3)3259709,259713,25971427770
Chalcopyrite  (*)ChalcopyriteCuFeS25259707,259709,259719,259723,25972627198
Chromite  (*)SpinelFe2+Cr2O41631638259698,259703,259704,259711,259717,259724,259725,2597273902
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12597233531
Cinnabar  (*)NoneHgS2259699,2597092600
Galena  (*)RocksaltPbS2259709,25972324243
Gold  (*)CopperAu9259697,259699,259706,259707,259708,259709,259712,259714,25972330554
Magnetite  (*)SpinelFe2+Fe3+2O4125972614899
Malachite  (*)MalachiteCu2(CO3)(OH)2125972312537
Molybdenite  (*)MolybdeniteMoS212597195800
Powellite  (*)ScheeliteCa(MoO4)1259720494
Pyrite  (*)PyriteFeS26259707,259709,259713,259714,259718,25972339462
Pyrrhotite  (*)NickelineFe7S82259714,2597239056
Quartz  (*)QuartzSiO27259697,259707,259709,259713,259714,259721,25972361156
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)1259721969
Stibnite  (*)StibniteSb2S312597093418
Sylvanite  (*)MeloniteAgAuTe41259714337
Tetradymite  (*)TetradymiteBi2Te2S1259714510



1 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-00425163163Middle Jurassic (164-162 Ma)       Cr151494Sexton Mountain Chromite (Sexton Chromite), Grants Pass District, Josephine Co., Oregon, USASexton MountainMoiser et al. (2012) USGSSIR2012_5157 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...