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:
San Luis Obispo Co., California, USA

Oldest recorded age at locality: 163
Youngest recorded age at locality: 0

mindat Locality ID: 3565
mindat URL: http://www.mindat.org/loc-3565.html

Tectonic Settings:

Total number of sublocalities beneath "San Luis Obispo Co., California, USA": 408
Total number of bottom-level sublocalities: 342

Number of Child Localities: 26
Child Localities:
Atascadero
Avila Beach
Black Mountain
Carrizo Plain
Cholame
Creston
Cuyama Valley
Fairview Mine
Fellows Area
Harrington Mine
Highland Monocline Structure
La Panza Mts
Lake Nacimiento
Los Osos
Morro Bay
Nipomo
Oceano
Paso Robles
Pismo Beach
San Luis Obispo
San Rafael Mts
Santa Lucia Mts (Santa Lucia Range)
Santa Margarita
Shell Beach
Taylor Spring
Temblor Range

Latitude: 35°20'1"N
Longitude: 120°28'44"W
Decimal Degree (lat, lon): 35.333611111111,-120.47888888889
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 Ba C Ca Cl Co Cr Cu F Fe H Hg K Mg Mn Mo Na Ni O P Pb S Sb Si Ti U 

Elements from minerals reported directly at this locality: Al Ca Cr H K Mg Na O Si 

Structural Groups for minerals in this locality: 
AllophaneAmorphousAmphiboleAnalcimeAragoniteAutuniteBaryteBlöditeCalciteChalcopyrite
ClayClinozoisiteCopperCorundumCristobaliteEpidoteEpsomiteFeldsparFluoriteGypsum
KaoliniteLawsoniteMarcasiteMelanteriteMicaMilleriteMordeniteNatroliteNickelineNone
Not in a structural groupPrehnitePyritePyrochlorePyrophyllitePyroxeneQuartzRocksaltRutileScheelite
SerpentineSmectite-vermiculiteSphaleriteSpinelStibniteTalcTridymiteTurquoiseVivianiteZippeite

76 IMA Minerals at location:
Albite  (*)Allophane  (*)Alunogen  (*)Analcime  (*)Antigorite  (*)
Aragonite  (*)Autunite  (*)Baryte  (*)Bieberite  (*)Blödite  (*)
Calcite  (*)Calomel  (*)Cervantite  (*)Chalcopyrite  (*)Chromite  (*)
Cinnabar  (*)Copper  (*)Cristobalite  (*)Dolomite  (*)Epidote  (*)
Epsomite  (*)Erythrite  (*)Glaucophane  (*)Gold  (*)Gypsum  (*)
Halite  (*)Hanksite  (*)Hausmannite  (*)Hematite  (*)Hercynite  (*)
Hydromagnesite  (*)Jadeite  (*)Kaolinite  (*)Laumontite  (*)Lawsonite  (*)
Linnaeite  (*)Löweite  (*)Magnesiochromite  (*)Magnesite  (*)Magnetite  (*)
Marcasite  (*)Melanterite  (*)Mercury  (*)Metacinnabar  (*)Millerite  (*)
Mirabilite  (*)Mordenite  (*)Morenosite  (*)Muscovite  (*)Natrolite  (*)
Neotocite  (*)Opal  (*)Prehnite  (*)Pyrite  (*)Pyrolusite  (*)
Pyrophyllite  (*)Pyrrhotite  (*)Quartz  (*)Rhodochrosite  (*)Rutile  (*)
Schröckingerite  (*)Schuetteite  (*)Spinel  (*)Stibiconite  (*)Stibnite  (*)
Talc  (*)Thénardite  (*)Tremolite  (*)Tridymite  (*)Turquoise  (*)
Uraninite  (*)Vivianite  (*)Volkonskoite  (*)Wulfenite  (*)Zaratite  (*)
Zippeite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)5.3011755148803
Allophane  (*)AllophaneAl2O3(SiO2)1.3-2.0·2.5-3.0H2O1175508470
Alunogen  (*)Not in a structural groupAl2(SO4)3(H2O)12·5H2O1175438272
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O11753551627
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)41631631175592708
Aragonite  (*)AragoniteCa(CO3)1631634175326,175430,175431,1755833250
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O4175359,175360,175381,1757301272
Baryte  (*)BaryteBa(SO4)4175354,175425,175500,17572711547
Bieberite  (*)MelanteriteCo(SO4)·7H2O5.30117548450
Blödite  (*)BlöditeNa2Mg(SO4)2·4H2O2175337,175346130
Calcite  (*)CalciteCa(CO3)1631637175372,175486,175583,175667,175680,175683,17569327770
Calomel  (*)NoneHgCl5.30117552791
Cervantite  (*)NoneSb3+Sb5+O45.301175523352
Chalcopyrite  (*)ChalcopyriteCuFeS25175420,175549,175559,175603,17571327198
Chromite  (*)SpinelFe2+Cr2O416316347175426,175445,175540,175564,175568,175569,175570,175571,175572,175574,175575,175579,175581,175582,175583,175589,175591,175594,175597,175606,175608,175610,175612,175614,175616,175617,175620,175621,175623,175624,175627,175628,175629,175630,175633,175634,175635,175637,175653,175656,175693,175699,175701,175702,175703,175705,1757103902
Cinnabar  (*)NoneHgS5.3027175475,175478,175481,175484,175485,175486,175488,175489,175516,175518,175523,175527,175531,175532,175533,175534,175535,175536,175537,175538,175546,175547,175548,175667,175683,175690,1756912600
Copper  (*)CopperCu4175425,175602,175713,1757183846
Cristobalite  (*)CristobaliteSiO21175348453
Dolomite  (*)NoneCaMg(CO3)211756839895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11753728173
Epsomite  (*)EpsomiteMg(SO4)·7H2O5.301175484484
Erythrite  (*)VivianiteCo3(AsO4)2·8H2O1175459814
Glaucophane  (*)Amphibole   Na2(Mg3Al2)Si8O22(OH)21631631175549286
Gold  (*)CopperAu13175369,175371,175385,175393,175395,175396,175401,175402,175404,175406,175410,175413,17570430554
Gypsum  (*)GypsumCa(SO4)·2H2O14175337,175339,175340,175341,175342,175343,175344,175345,175347,175411,175416,175466,175497,1757316890
Halite  (*)RocksaltNaCl2175337,1753461398
Hanksite  (*)NoneKNa22(SO4)9(CO3)2Cl2175337,17534612
Hausmannite  (*)SpinelMn2+Mn3+2O43175419,175425,175455350
Hematite  (*)CorundumFe2O35.302175361,17552714640
Hercynite  (*)SpinelFe2+Al2O41631631175592407
Hydromagnesite  (*)NoneMg5(CO3)4(OH)2·4H2O1175334341
Jadeite  (*)PyroxeneNaAlSi2O61631632175438,175549154
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)45.302175484,1754885591
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O11756931271
Lawsonite  (*)LawsoniteCaAl2(Si2O7)(OH)2·H2O1631632175449,175549121
Linnaeite  (*)SpinelCo2+Co3+2S45.301175484249
Löweite  (*)NoneNa12Mg7(SO4)13·15H2O117533728
Magnesiochromite  (*)SpinelMgCr2O41631638175451,175583,175592,175599,175604,175607,175611,175627311
Magnesite  (*)CalciteMg(CO3)5.303175504,175522,1756931487
Magnetite  (*)SpinelFe2+Fe3+2O4117544114899
Marcasite  (*)MarcasiteFeS25.302175433,1754845674
Melanterite  (*)MelanteriteFe(SO4)·7H2O5.301175484915
Mercury  (*)NoneHg5.302175489,175527397
Metacinnabar  (*)SphaleriteHgS5.304175484,175486,175532,175683255
Millerite  (*)MilleriteNiS5.302175484,1754861066
Mirabilite  (*)NoneNa2(SO4)·10H2O2175337,175346223
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O16300405
Morenosite  (*)EpsomiteNi(SO4)·7H2O5.30117548484
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2117569317380
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O11753551236
Neotocite  (*)Allophane(Mn,Fe)SiO3·H2O (?)2175419,175664186
Opal  (*)AmorphousSiO2·nH2O5.3010175417,175418,175423,175433,175443,175460,175505,175527,175611,1757252994
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)211753551898
Pyrite  (*)PyriteFeS25.308175372,175484,175485,175486,175488,175537,175543,17568339462
Pyrolusite  (*)RutileMnO211754553106
Pyrophyllite  (*)Clay PyrophylliteAl2Si4O10(OH)216300771
Pyrrhotite  (*)NickelineFe7S811755569056
Quartz  (*)QuartzSiO25.3012175372,175433,175484,175486,175488,175514,175516,175524,175532,175543,175683,17569361156
Rhodochrosite  (*)CalciteMn(CO3)5175425,175455,175625,175698,1757061711
Rutile  (*)RutileTiO211754335614
Schröckingerite  (*)NoneNaCa3(UO2)(SO4)(CO3)3F·10H2O1175407128
Schuetteite  (*)NoneHg3O2(SO4)002175438,17552721
Spinel  (*)SpinelMgAl2O41631632175461,1755921934
Stibiconite  (*)PyrochloreSb3+Sb5+2O6(OH)5.301175523446
Stibnite  (*)StibniteSb2S35.303175486,175511,1755433418
Talc  (*)Clay TalcMg3Si4O10(OH)216316311755833337
Thénardite  (*)NoneNa2(SO4)2175337,175346299
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)21631632175583,1756112562
Tridymite  (*)TridymiteSiO21175335458
Turquoise  (*)TurquoiseCuAl6(PO4)4(OH)8·4H2O1175438484
Uraninite  (*)FluoriteUO211754072718
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O1175708636
Volkonskoite  (*)Clay Smectite-vermiculiteCa0.3(Cr,Mg)2(Si,Al)4O10(OH)2·4H2O163163022
Wulfenite  (*)ScheelitePbMoO411753561655
Zaratite  (*)AmorphousNi3(CO3)(OH)4·4H2O163163117544556
Zippeite  (*)ZippeiteK2[(UO2)4(SO4)2O2(OH)2](H2O)41175407175


14 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-00016163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91983Sousa Ranch Deposit, San Luis Obispo, San Luis Obispo Co., California, USASousa RanchMoiser et al. (2012) USGSSIR2012_5157 
Hg-001285.30 ?-?     Cinnabar, 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 
Hg-001295.30 ?-?     Calomel, Mercury, Metacinnabar, SchuetteiteHg209348Cambria-Oceanic District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USACalifornia Mercury OccurrencesStudemeister (1984)10.1007/BF00199786MD19_202 
podchrome-00004163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr92045Zerfing Ranch Deposit (Old Creek Deposit), Cayucos, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USAZerfing RanchMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00011163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91918Norcross Mine (West Norcross Mine; Brooklyn Mine; Manzanita; Biaggini Mine; Norcross Chrome Mine; Sunrise No. 3 Claim; Victory No. 3 Claim; Bernardo No. 3 Claim), Cerro Alto, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USANorcrossMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00014163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91918Norcross Mine (West Norcross Mine; Brooklyn Mine; Manzanita; Biaggini Mine; Norcross Chrome Mine; Sunrise No. 3 Claim; Victory No. 3 Claim; Bernardo No. 3 Claim), Cerro Alto, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USAVictory No. 3Moiser et al. (2012) USGSSIR2012_5157 
podchrome-00013163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91994Sweetwater Mine (San Juan Mine; Pierce And Benadom Group), Cerro Alto, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USASweetwaterMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00005163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91783Castro Mine (Castro Chrome Mine; Trinidad Mine), Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USACastroMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00009163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91932Pick And Shovel Mine (Pick A Shovel Mine; Safety Chrome Mine; Safety Mine), Cuesta Pass, Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USAPick and ShovelMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00006163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91870La Primera Mine (El Primero Mine; Hardface Mine; La Primero Mine), Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USAEl PrimeroMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00015163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91888Lucky Strike Mine, Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USALucky StrikeMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00007163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91915New London Mine (London Mine), Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USANew LondonMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00010163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr91992Sunshine Claims (Keeney; Alviso), Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USASunshineMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00008163163Middle Jurassic (163.3±1.1 Ma, U-Pb apatite-feldspar isochron in gabbro)       Cr92000Trinidad Mine, Chorro, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USATrinidadMoiser et al. (2012) USGSSIR2012_5157 

SampleSource LocalityReference URL
R050341Soda Lake, Carrizo Plain, San Luis Obispo Co., California, USAhttps://rruff.info/R050341
R050350Soda Lake, Carrizo Plain, San Luis Obispo Co., California, USAhttps://rruff.info/R050350
R080079Oceanic Mine, Cambria, Cambria-Oceanic District, Santa Lucia Mts (Santa Lucia Range), San Luis Obispo Co., California, USAhttps://rruff.info/R080079

All locality data graciously provided by mindat.org

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