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:
Adelaida, Adelaide District (Adelaide Klau District), Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA

Oldest recorded age at locality: 5.3
Youngest recorded age at locality: 0

mindat Locality ID: 221008
mindat URL: http://www.mindat.org/loc-221008.html

Tectonic Settings:

Total number of sublocalities beneath "Adelaida, Adelaide District (Adelaide Klau District), Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USA": 21
Total number of bottom-level sublocalities: 20

Number of Child Localities: 18
Child Localities:
Almaden Deposit
Cypress Mountain Group
Dubost Deposit (Dubest Deposit)
Elizabeth And Winona Group
Fine Enterprises Prospect (Tamley Claim; Tamney Group)
Fitzhugh Ranch Deposits (Benton Ranch)
James Wheeler Claims
Kismet Occurrence
Klau Mine Group
La Libertad Mine (Belt Mine; Jacks 7X; Thompson Mine)
Lime Mountain Quarry (Lime Mountain Deposit; Dalessi; Limestone Mountain Quarry)
Little Bonanza Mine (Modoc; Alice; George; Josephine Group; Tartaglia)
Madrone Mine
Mayfield Prospect
Peppard Ranch Deposit
Unnamed Hg Occurrence (2)
Unnamed Pumice Quarry (3)
William Tell Occurrence (Williams)

Latitude: 35°36'28"N
Longitude: 120°55'27"W
Decimal Degree (lat, lon): 35.607777777778,-120.92416666667

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 Co Fe H Hg Mg Ni O S Sb Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CalciteClayEpsomiteKaoliniteMarcasiteMelanteriteMilleriteNonePyriteQuartz
SphaleriteSpinelStibnite

15 IMA Minerals at location:
Bieberite  (*)Calcite  (*)Cinnabar  (*)Epsomite  (*)Kaolinite  (*)
Linnaeite  (*)Marcasite  (*)Melanterite  (*)Mercury  (*)Metacinnabar  (*)
Millerite  (*)Morenosite  (*)Pyrite  (*)Quartz  (*)Stibnite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Bieberite  (*)MelanteriteCo(SO4)·7H2O5.30117548450
Calcite  (*)CalciteCa(CO3)5.30117548627770
Cinnabar  (*)NoneHgS5.308175475,175478,175481,175484,175485,175486,175488,1754892600
Epsomite  (*)EpsomiteMg(SO4)·7H2O5.301175484484
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)45.302175484,1754885591
Linnaeite  (*)SpinelCo2+Co3+2S45.301175484249
Marcasite  (*)MarcasiteFeS25.3011754845674
Melanterite  (*)MelanteriteFe(SO4)·7H2O5.301175484915
Mercury  (*)NoneHg5.301175489397
Metacinnabar  (*)SphaleriteHgS5.302175484,175486255
Millerite  (*)MilleriteNiS5.302175484,1754861066
Morenosite  (*)EpsomiteNi(SO4)·7H2O5.30117548484
Pyrite  (*)PyriteFeS25.304175484,175485,175486,17548839462
Quartz  (*)QuartzSiO25.303175484,175486,17548861156
Stibnite  (*)StibniteSb2S35.3011754863418



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
Hg-001285.30 ?-?    YesCinnabar, Mercury, MetacinnabarHg206262Adelaide District (Adelaide Klau District), Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USACalifornia Mercury OccurrencesStudemeister (1984)10.1007/BF00199786MD19_202 


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

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