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The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.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:
Inland Sea (Setonaikai), Ehime, Japan

Oldest recorded age at locality: 145
Youngest recorded age at locality: 66

mindat Locality ID: 146249
mindat URL: http://www.mindat.org/loc-146249.html

Tectonic Settings:

Total number of sublocalities beneath "Inland Sea (Setonaikai), Ehime, Japan": 8
Total number of bottom-level sublocalities: 6

Number of Child Localities: 5
Child Localities:
Imabari City
Iwagi Island
Ko-Ouge Island (Kooge Island)
Myojin Island
Yuge Island

Latitude: 34°14'18"N
Longitude: 133°7'3"E
Decimal Degree (lat, lon): 34.238333333333,133.1175

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 Be Ca Ce F Fe H K Li Mg Na Nb O P S Si Th Ti U Y Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllaniteAmphiboleApatiteBaratoviteCalzirtiteClayClinozoisiteCorundumEpidoteFeldspar
FluoriteGarnetMeliliteMicaMilariteNickelineNonePectolitePerovskitePyroxene
QuartzSpinelTitaniteVesuvianiteZirconZirconolite

34 IMA Minerals at location:
Aegirine  (*)Albite  (*)Allanite-(Ce)  (*)Andradite  (*)Augite  (*)
Calzirtite  (*)Epidote  (*)Fluorapatite  (*)Fluorite  (*)Gugiaite  (*)
Hedenbergite  (*)Hercynite  (*)Ilmenite  (*)Katayamalite  (*)Kobeite-(Y)  (*)
Magnetite  (*)Microcline  (*)Murakamiite  (*)Pargasite  (*)Pectolite  (*)
Perovskite  (*)Phlogopite  (*)Potassic-ferro-sadanagaite  (*)Potassic-sadanagaite  (*)Pyrrhotite  (*)
Quartz  (*)Spinel  (*)Sugilite  (*)Thorianite  (*)Thorite  (*)
Titanite  (*)Vesuvianite  (*)Zircon  (*)Zirconolite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aegirine  (*)PyroxeneNaFe3+Si2O6145661740721022
Albite  (*)FeldsparNa(AlSi3O8)145661740728803
Allanite-(Ce)  (*)Allanite EpidoteCaCe(Al2Fe2+)[Si2O7][SiO4]O(OH)14566174072706
Andradite  (*)GarnetCa3Fe3+2(SiO4)3145661740721534
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O61740742060
Calzirtite  (*)CalzirtiteCa2Zr5Ti2O1617407332
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)145661740728173
Fluorapatite  (*)ApatiteCa5(PO4)3F145661740722740
Fluorite  (*)FluoriteCaF2274075,740769617
Gugiaite  (*)MeliliteCa2BeSi2O71740755
Hedenbergite  (*)PyroxeneCaFe2+Si2O614566174072741
Hercynite  (*)SpinelFe2+Al2O4174075407
Ilmenite  (*)CorundumFe2+Ti4+O3374074,74075,740765433
Katayamalite  (*)BaratoviteKLi3Ca7Ti2(SiO3)12(OH)2145661740722
Kobeite-(Y)  (*)None(Y,U)(Ti,Nb)2(O,OH)6 (?)1740768
Magnetite  (*)SpinelFe2+Fe3+2O417407414899
Microcline  (*)FeldsparK(AlSi3O8)145661740724924
Murakamiite  (*)PectoliteCa2LiSi3O8(OH)145661740721
Pargasite  (*)AmphiboleNaCa2(Mg4Al)(Si6Al2)O22(OH)2274074,74075313
Pectolite  (*)PectoliteNaCa2Si3O8(OH)14566174072363
Perovskite  (*)PerovskiteCaTiO3274074,74075495
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)21740742273
Potassic-ferro-sadanagaite  (*)AmphiboleKCa2(Fe2+3Al2)(Si5Al3)O22(OH)21740753
Potassic-sadanagaite  (*)AmphiboleKCa2(Mg3Al2)(Si5Al3)O22(OH)21740743
Pyrrhotite  (*)NickelineFe7S81740749056
Quartz  (*)QuartzSiO21456617407261156
Spinel  (*)SpinelMgAl2O4274074,740751934
Sugilite  (*)MilariteKNa2Fe3+2(Li3Si12)O301456617407215
Thorianite  (*)FluoriteThO2174075236
Thorite  (*)ZirconTh(SiO4)1740751006
Titanite  (*)TitaniteCaTi(SiO4)O14566474072,74074,74075,740764899
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10274074,740751395
Zircon  (*)ZirconZr(SiO4)14566474070,74071,74072,740755251
Zirconolite  (*)Zirconolite(Ca,Y)Zr(Ti,Mg,Al)2O7274075,74076140



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
Alexandra-010014566Cretaceous Age of intrusion      2178Iwagi Island, Inland Sea (Setonaikai), Ehime, JapanIwagi IslandMurakami et al. (1983)10.2465/minerj.11.261MJ11_261 


SampleSource LocalityReference URL
R120164Iwagi Island, Inland Sea (Setonaikai), Ehime, Japanhttps://rruff.info/R120164


All locality data graciously provided by mindat.org

All age data...

Other copyright data...