Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.




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:
Plumbago, Alleghany District (Forest District), Sierra Co., California, USA


mindat Locality ID: 269615
mindat URL: http://www.mindat.org/loc-269615.html

Tectonic Settings:

Total number of sublocalities beneath "Plumbago, Alleghany District (Forest District), Sierra Co., California, USA": 12
Total number of bottom-level sublocalities: 12

Number of Child Localities: 12
Child Localities:
Arcade Mine
Bonanza Occurrence
Central Group (Bonanza; Edwards Group; Edwards Grp.; E. Edwards Group)
Gold Canyon Mine
Hope Claim
Independent Claim (Independence)
King Consolidated Group (King Cons Group)
Kinselbach Mine (Acme)
Mahady Prospect
Plumbago Mine (Marion Mine; Croesus Mine; Standard Extension Mine; Crafts Clute Mine; Enterprise Mine; Hope Mine; Gold Beater Mine)
Seven Spot Mine (Lucky Three)
Wolf Creek Mine

Latitude: 39°27'12"N
Longitude: 120°48'49"W
Decimal Degree (lat, lon): 39.453333333333,-120.81361111111
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 As Au C Cu Fe H K Mg O Pb S Sb Si Ti Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ArsenopyriteChalcopyriteClayCopperMicaNonePalygorskitePyriteQuartzRocksalt
RutileSerpentineSphalerite

13 IMA Minerals at location:
Arsenopyrite  (*)Chalcopyrite  (*)Chrysotile  (*)Galena  (*)Gold  (*)
Graphite  (*)Jamesonite  (*)Muscovite  (*)Palygorskite  (*)Pyrite  (*)
Quartz  (*)Rutile  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenopyrite  (*)ArsenopyriteFeAsS2177373,1773799052
Chalcopyrite  (*)ChalcopyriteCuFeS2117737927198
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41177379951
Galena  (*)RocksaltPbS2177373,17737924243
Gold  (*)CopperAu10177370,177372,177373,177374,177375,177376,177377,177379,177380,17738130554
Graphite  (*)NoneC11773742812
Jamesonite  (*)NonePb4FeSb6S141177379784
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2117737917380
Palygorskite  (*)Palygorskite Clay(Mg,Al)2Si4O10(OH)·4H2O1177379306
Pyrite  (*)PyriteFeS2117737939462
Quartz  (*)QuartzSiO210177370,177372,177373,177374,177375,177376,177377,177379,177380,17738161156
Rutile  (*)RutileTiO211773795614
Sphalerite  (*)SphaleriteZnS2177373,17737921482


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

All locality data graciously provided by mindat.org

All age data...

Other copyright data...