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:
Jumbo Mountain, Darrington, Snohomish Co., Washington, USA


mindat Locality ID: 31448
mindat URL: http://www.mindat.org/loc-31448.html

Tectonic Settings:

Total number of sublocalities beneath "Jumbo Mountain, Darrington, Snohomish Co., Washington, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Jumbo Mountain Area
Jumbo Mountain Nickel Deposit

Latitude: 48°12'0"N
Longitude: 121°35'59"W
Decimal Degree (lat, lon): 48.2,-121.59972222222

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 B Bi C Ca Cr Cu Fe H Mg Ni O S Si Te 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcopyriteClayCubaniteLudwigiteNickelineNoneOlivinePentlanditeSpinelTalc
TetradymiteValleriiteWurtzite

13 IMA Minerals at location:
Ankerite  (*)Chalcopyrite  (*)Chromite  (*)Cubanite  (*)Forsterite  (*)
Kotoite  (*)Ludwigite  (*)Mackinawite  (*)Pentlandite  (*)Pyrrhotite  (*)
Talc  (*)Tellurobismuthite  (*)Valleriite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)212856353092
Chalcopyrite  (*)ChalcopyriteCuFeS2128563627198
Chromite  (*)SpinelFe2+Cr2O412856363902
Cubanite  (*)Cubanite WurtziteCuFe2S31285636802
Forsterite  (*)OlivineMg2(SiO4)12856351188
Kotoite  (*)NoneMg3(BO3)2128563620
Ludwigite  (*)LudwigiteMg2Fe3+O2(BO3)1285636134
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)1285636451
Pentlandite  (*)Pentlandite(Ni,Fe)9S812856361512
Pyrrhotite  (*)NickelineFe7S812856369056
Talc  (*)Clay TalcMg3Si4O10(OH)212856353337
Tellurobismuthite  (*)TetradymiteBi2Te31285636276
Valleriite  (*)Valleriite2[(Fe,Cu)S]·1.53[(Mg,Al)(OH)2]1285636237



No ages have been assigned to this locality yet.

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All locality data graciously provided by mindat.org

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