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:
Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USA

Oldest recorded age at locality: 19
Youngest recorded age at locality: 19

mindat Locality ID: 80184
mindat URL: http://www.mindat.org/loc-80184.html

Tectonic Settings:

Total number of sublocalities beneath "Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USA": 17
Total number of bottom-level sublocalities: 14

Number of Child Localities: 3
Child Localities:
California Borate Company Property (Western Borax Mine; Western Mine)
U.S. Borax Mine (Pacific West Coast Borax; Kramer Mine; Baker Mine)
West Baker

Latitude: 35°2'25"N
Longitude: 117°41'25"W
Decimal Degree (lat, lon): 35.040277777778,-117.69027777778
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 B Ba C Ca Cl F Fe H Hg K Li Mg Mn Na Ni O S Sb Si Sr Ti U V Zr 

Elements from minerals reported directly at this locality: Al As B Ba C Ca Cl F Fe H Hg K Li Mg Mn Na Ni O S Si Sr Ti Zr 

Structural Groups for minerals in this locality: 
AluniteAmorphousAnalcimeAragoniteArsenicArsenoliteBaryteBerthieriteCalciteChabazite
ClayClinozoisiteCopiapiteCorundumEpidoteEpsomiteFeldsparGmeliniteGypsumHarmotome
HeulanditeKaoliniteLepidocrociteMicaMordeniteNatroliteNickelineNoneOrpimentPseudobrookite
PyritePyroxeneQuartzRocksaltRutileSmectite-vermiculiteSphaleriteSpinelStibniteSulphur
TitaniteTridymiteVeatchiteZircon

84 IMA Minerals at location:
Albite  (*)Analcime  (*)Anorthite  (*)Aragonite  (*)Arsenic  (*)
Arsenolite  (*)Augite  (*)Baryte  (*)Barytocalcite  (*)Berthierite  (*)
Birnessite  (*)Borax  (*)Calcite  (*)Carnotite  (*)Chabazite-Na  (*)
Clinoptilolite-Na  (*)Colemanite  (*)Copiapite  (*)Dolomite  (*)Epidote  (*)
Epsomite  (*)Garrelsite  (*)Gerstleyite  (*)Gmelinite-Na  (*)Greigite  (*)
Gypsum  (*)Halite  (*)Hectorite  (*)Hematite  (*)Heulandite-Na  (*)
Hisingerite  (*)Howlite  (*)Hydroboracite  (*)Ilmenite  (*)Inderite  (*)
Inyoite  (*)Kaolinite  (*)Kernite  (*)Kurnakovite  (*)Lepidocrocite  (*)
Mackinawite  (*)Magnetite  (*)Mazzite-Na  (*)Metacinnabar  (*)Meyerhofferite  (*)
Microcline  (*)Mirabilite  (*)Montmorillonite  (*)Mordenite  (*)Muscovite  (*)
Natrojarosite  (*)Natrolite  (*)Opal  (*)Orpiment  (*)Pararealgar  (*)
Phillipsite-Na  (*)Phlogopite  (*)Probertite  (*)Pseudobrookite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Realgar  (*)Rhodochrosite  (*)Rutile  (*)
Saponite  (*)Sassolite  (*)Searlesite  (*)Sideronatrite  (*)Smythite  (*)
Stibnite  (*)Strontianite  (*)Sulphur  (*)Thénardite  (*)Tincalconite  (*)
Titanite  (*)Todorokite  (*)Tridymite  (*)Tunellite  (*)Ulexite  (*)
Veatchite  (*)Wardsmithite  (*)Witherite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)191908803
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O19192159716,1597191627
Anorthite  (*)FeldsparCa(Al2Si2O8)191901036
Aragonite  (*)AragoniteCa(CO3)191903250
Arsenic  (*)ArsenicAs19190379
Arsenolite  (*)ArsenoliteAs2O319190231
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O6191902060
Baryte  (*)BaryteBa(SO4)1919011547
Barytocalcite  (*)NoneBaCa(CO3)21919083
Berthierite  (*)BerthieriteFeSb2S419191159715343
Birnessite  (*)None(Na,Ca,K)0.6(Mn4+,Mn3+)2O4·1.5H2O19190178
Borax  (*)NoneNa2B4O5(OH)4·8H2O19195159716,159717,159718,159719,15973076
Calcite  (*)CalciteCa(CO3)19193159716,159719,15972427770
Carnotite  (*)NoneK2(UO2)2(VO4)2·3H2O191911597291184
Chabazite-Na  (*)Chabazite(Na3K)[Al4Si8O24]·11H2O19192159716,15971966
Clinoptilolite-Na  (*)HeulanditeNa6(Si30Al6)O72·20H2O1919115971924
Colemanite  (*)NoneCaB3O4(OH)3·H2O19192159716,159719144
Copiapite  (*)CopiapiteFe2+Fe3+4(SO4)6(OH)2·20H2O19191159715382
Dolomite  (*)NoneCaMg(CO3)2191911597249895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)191908173
Epsomite  (*)EpsomiteMg(SO4)·7H2O19190484
Garrelsite  (*)NoneNaBa3B7Si2O16(OH)4191905
Gerstleyite  (*)NoneNa2(Sb,As)8S13·2H2O19194159715,159716,159717,1597243
Gmelinite-Na  (*)GmeliniteNa4(Si8Al4)O24·11H2O1919115971925
Greigite  (*)SpinelFe2+Fe3+2S419193159716,159719,15972462
Gypsum  (*)GypsumCa(SO4)·2H2O191906890
Halite  (*)RocksaltNaCl191901398
Hectorite  (*)ClayNa0.3(Mg,Li)3Si4O10(F,OH)2·nH2O1919019
Hematite  (*)CorundumFe2O31919014640
Heulandite-Na  (*)Heulandite(Na,Ca,K)6(Si,Al)36O72·22H2O1919115971918
Hisingerite  (*)Kaolinite ClayFe2Si2O5(OH)4·2H2O19190144
Howlite  (*)NoneCa2SiB5O9(OH)51919115971536
Hydroboracite  (*)NoneCaMg[B3O4(OH)3]2·3H2O19192159716,15971942
Ilmenite  (*)CorundumFe2+Ti4+O3191905433
Inderite  (*)NoneMgB3O3(OH)5·5H2O19194159716,159717,159718,15971913
Inyoite  (*)NoneCaB3O3(OH)5·4H2O1919115971934
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)4191905591
Kernite  (*)NoneNa2B4O6(OH)2·3H2O19194159716,159717,159719,15972410
Kurnakovite  (*)NoneMgB3O3(OH)5·5H2O19194159716,159717,159718,15971915
Lepidocrocite  (*)LepidocrociteFe3+O(OH)19190581
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)19190451
Magnetite  (*)SpinelFe2+Fe3+2O41919014899
Mazzite-Na  (*)NoneNa8(Si28Al8)O72·30H2O191911597192
Metacinnabar  (*)SphaleriteHgS19190255
Meyerhofferite  (*)NoneCaB3O3(OH)5·H2O1919115971923
Microcline  (*)FeldsparK(AlSi3O8)191904924
Mirabilite  (*)NoneNa2(SO4)·10H2O19191159715223
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O191911597241508
Mordenite  (*)Mordenite(Na2,Ca,K2)4(Al8Si40)O96·28H2O19191159719405
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)21919017380
Natrojarosite  (*)AluniteNaFe3+3(SO4)2(OH)619191159715254
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O191901236
Opal  (*)AmorphousSiO2·nH2O191911597292994
Orpiment  (*)OrpimentAs2S319192159716,159719511
Pararealgar  (*)NoneAs4S41919115971657
Phillipsite-Na  (*)HarmotomeNa6(Si10Al6)O32·12H2O1919115971927
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)2191902273
Probertite  (*)NoneNaCaB5O7(OH)4·3H2O19194159715,159716,159717,15971929
Pseudobrookite  (*)Pseudobrookite(Fe3+2Ti)O519190164
Pyrite  (*)PyriteFeS21919039462
Pyrrhotite  (*)NickelineFe7S819192159716,1597199056
Quartz  (*)QuartzSiO21919061156
Realgar  (*)NoneAsS19194159716,159717,159718,159719712
Rhodochrosite  (*)CalciteMn(CO3)19192159716,1597191711
Rutile  (*)RutileTiO2191905614
Saponite  (*)Clay Smectite-vermiculite(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O19192159716,159719301
Sassolite  (*)NoneB(OH)319194159715,159716,159717,15972431
Searlesite  (*)NoneNaBSi2O5(OH)219194159715,159716,159719,15972434
Sideronatrite  (*)NoneNa2Fe3+(SO4)2(OH)·3H2O1919073
Smythite  (*)None(Fe,Ni)3+xS4 (x ≈ 0-0.3)1919115971677
Stibnite  (*)StibniteSb2S3191911597173418
Strontianite  (*)AragoniteSr(CO3)19190589
Sulphur  (*)SulphurS191902045
Thénardite  (*)NoneNa2(SO4)19191159715299
Tincalconite  (*)NoneNa2B4O5(OH)4·3H2O19195159715,159716,159717,159718,15971929
Titanite  (*)TitaniteCaTi(SiO4)O191904899
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O19190433
Tridymite  (*)TridymiteSiO219190458
Tunellite  (*)NoneSrB6O9(OH)2·3H2O19193159716,159718,15971912
Ulexite  (*)NoneNaCaB5O6(OH)6·5H2O19194159716,159718,159719,159730160
Veatchite  (*)VeatchiteSr2B11O16(OH)5·H2O1919115971612
Wardsmithite  (*)NoneCa5Mg(B4O7)6·30H2O191905
Witherite  (*)AragoniteBa(CO3)19190251
Zircon  (*)ZirconZr(SiO4)191905251


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
Scott-OLEB41_307-0001191919 Age of deposition      80184Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAKramer DepositGrew et al. (2011)10.1007/s11084-010-9233-yOLEB41_307the oldest reported kernite is 19 Ma in the Kramer

SampleSource LocalityReference URL
R050102Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R050102
R040161Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R040161
R050105Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R050105
R050393Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R050393
R060255California Borate Company Property (Western Borax Mine; Western Mine), Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R060255
R060510U.S. Borax Mine (Pacific West Coast Borax; Kramer Mine; Baker Mine), Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R060510
R150123U.S. Borax Mine (Pacific West Coast Borax; Kramer Mine; Baker Mine), Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R150123
R070755Jenifer Mine (Jennifer Mine), U.S. Borax Mine (Pacific West Coast Borax; Kramer Mine; Baker Mine), Kramer Borate Deposit, Boron, Kramer District (Kramer Borate District), Kern Co., California, USAhttps://rruff.info/R070755

All locality data graciously provided by mindat.org

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