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:
Index, Index District, Snohomish Co., Washington, USA


mindat Locality ID: 29792
mindat URL: http://www.mindat.org/loc-29792.html

Tectonic Settings:

Total number of sublocalities beneath "Index, Index District, Snohomish Co., Washington, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Deer Flat Area
Lake Serene Mine (Index-Independant Mine; Wilber Index Mine; Index Mine; Pride Of Index Mine)
Uncle Sam Mine

Latitude: 47°48'16"N
Longitude: 121°33'54"W
Decimal Degree (lat, lon): 47.804444444444,-121.565
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 Cu Fe H K Mn Na O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcopyriteChloriteClayFeldsparGarnetNoneNot in a structural groupPyriteQuartz

10 IMA Minerals at location:
Albite  (*)Azurite  (*)Bornite  (*)Chalcocite  (*)Chalcopyrite  (*)
Grossular  (*)Microcline  (*)Pennantite  (*)Pyrite  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)12857058803
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)212857065509
Bornite  (*)NoneCu5FeS412857065516
Chalcocite  (*)NoneCu2S12857065707
Chalcopyrite  (*)ChalcopyriteCuFeS2128570627198
Grossular  (*)GarnetCa3Al2(SiO4)312857071544
Microcline  (*)FeldsparK(AlSi3O8)12857064924
Pennantite  (*)Chlorite ClayMn2+5Al(Si3Al)O10(OH)8128570625
Pyrite  (*)PyriteFeS2128570639462
Quartz  (*)QuartzSiO22285705,28570661156


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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