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:
Tonaki Island, Okinawa, Japan


mindat Locality ID: 258010
mindat URL: http://www.mindat.org/loc-258010.html

Tectonic Settings:

Total number of sublocalities beneath "Tonaki Island, Okinawa, Japan": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Shidonosaki (Shidozaki)

Latitude: 26°22'20"N
Longitude: 127°8'28"E
Decimal Degree (lat, lon): 26.372222222222,127.14111111111
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 Cu Fe H Na O S Si 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteCalciteChalcopyriteClayClinozoisiteEpidoteGarnetKaoliniteMalachiteNone
PyritePyroxeneQuartzSpinelWollastonite

13 IMA Minerals at location:
Almandine  (*)Andradite  (*)Calcite  (*)Chalcopyrite  (*)Epidote  (*)
Hedenbergite  (*)Halloysite-10Å  (*)Magnetite  (*)Malachite  (*)Natrojarosite  (*)
Pyrite  (*)Quartz  (*)Wollastonite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)31762212353
Andradite  (*)GarnetCa3Fe3+2(SiO4)31762211534
Calcite  (*)CalciteCa(CO3)17622127770
Chalcopyrite  (*)ChalcopyriteCuFeS217622127198
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)1762218173
Hedenbergite  (*)PyroxeneCaFe2+Si2O6176221741
Halloysite-10Å  (*)Clay KaoliniteAl2Si2O5(OH)4·2H2O17622162
Magnetite  (*)SpinelFe2+Fe3+2O417622114899
Malachite  (*)MalachiteCu2(CO3)(OH)217622112537
Natrojarosite  (*)AluniteNaFe3+3(SO4)2(OH)6176221254
Pyrite  (*)PyriteFeS217622139462
Quartz  (*)QuartzSiO217622161156
Wollastonite  (*)WollastoniteCaSiO31762211247


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

All age data...

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