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:
Kiwada Mine, Iwakuni City, Yamaguchi, Japan

Oldest recorded age at locality: 98.7
Youngest recorded age at locality: 88.4

mindat Locality ID: 185505
mindat URL: http://www.mindat.org/loc-185505.html

Tectonic Settings:

Total number of sublocalities beneath "Kiwada Mine, Iwakuni City, Yamaguchi, Japan": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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 Be C Ca Cu F Fe H K Mg Mn Mo Na O P S Si Sn W Zn 

Elements from minerals reported directly at this locality: Al As Be C Ca Cu F Fe H K Mg Mn Mo Na O P S Si Sn W Zn 

Structural Groups for minerals in this locality: 
ApatiteArsenopyriteCalciteCancrinite-sodaliteChalcopyriteClayFluoriteMolybdeniteNickelineNone
PyroxeneQuartzRocksaltRutileScheeliteSodaliteSphaleriteSpinelStilpnomelaneTitanite
VesuvianiteWollastonite

19 IMA Minerals at location:
Alabandite  (*)Arsenopyrite  (*)Calcite  (*)Cassiterite  (*)Chalcopyrite  (*)
Danalite  (*)Fluorapatite  (*)Fluorite  (*)Hedenbergite  (*)Magnetite  (*)
Malayaite  (*)Molybdenite  (*)Pyrrhotite  (*)Quartz  (*)Scheelite  (*)
Sphalerite  (*)Stilpnomelane  (*)Vesuvianite  (*)Wollastonite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alabandite  (*)RocksaltMnS98.792.90312
Arsenopyrite  (*)ArsenopyriteFeAsS98.792.909052
Calcite  (*)CalciteCa(CO3)98.792.9027770
Cassiterite  (*)RutileSnO298.792.905171
Chalcopyrite  (*)ChalcopyriteCuFeS298.792.9027198
Danalite  (*)Cancrinite-sodalite SodaliteBe3Fe2+4(SiO4)3S98.792.9058
Fluorapatite  (*)ApatiteCa5(PO4)3F98.792.902740
Fluorite  (*)FluoriteCaF298.792.909617
Hedenbergite  (*)PyroxeneCaFe2+Si2O698.792.90741
Magnetite  (*)SpinelFe2+Fe3+2O498.792.9014899
Malayaite  (*)TitaniteCaSnO(SiO4)98.792.9040
Molybdenite  (*)MolybdeniteMoS298.792.905800
Pyrrhotite  (*)NickelineFe7S898.792.909056
Quartz  (*)QuartzSiO298.792.9061156
Scheelite  (*)ScheeliteCa(WO4)98.792.904894
Sphalerite  (*)SphaleriteZnS98.792.9021482
Stilpnomelane  (*)Stilpnomelane Clay(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O98.792.90456
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)1098.792.901395
Wollastonite  (*)WollastoniteCaSiO398.792.901247



3 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
Kristen00192797.491.894.6±2.8K-Ar muscovite69FD-79 YesMuscovite  11275Fujigatani Mine, Iwakuni City, Yamaguchi, JapanFujigataniShibata and Ishihara (1974)10.2113/gsecongeo.69.8.1207EG69_1207 
Kristen00192895.888.492.1±3.7K-Ar muscovite  YesMuscovite  11275Fujigatani Mine, Iwakuni City, Yamaguchi, JapanFujigataniShibata and Ishihara (1974)10.2113/gsecongeo.69.8.1207EG69_1207 
Kristen00192998.792.995.8±2.9K-Ar muscovite   Muscovite  185505Kiwada Mine, Iwakuni City, Yamaguchi, JapanKiwadaShibata and Ishihara (1974)10.2113/gsecongeo.69.8.1207EG69_1207 


SampleSource LocalityReference URL


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