Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



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  • This page displays localities at which this mineral is found, and estimates of the oldest possible geologic age of the mineral at these localities.


    • Minerals queried: Okayamalite

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    Max Age (Ma)Min Age (Ma)mindat IDLocality containing MineralCountryTectonic SettingsDated Locality IDDated Locality (Max Age)Reference (Max Age)Reference (Min Age)Excel ID (Max Age)Excel ID (Min Age)Query Minerals# of Query Minerals at LocalityLat DegLat MinLat SecLon DegLon MinLon SecDecimal Degree
    P2526614488JapanJapanJMPS99_328JMPS99_328Michelle_0043Michelle_0043Okayamalite 135195713558335.3325,135.9675
    P2526622393Okayama, JapanJapanJMPS99_328JMPS99_328Michelle_0043Michelle_0043Okayamalite 1344818133481834.805,133.805
    P25266146147Takahashi City, Okayama, JapanJapanJMPS99_328JMPS99_328Michelle_0043Michelle_0043Okayamalite 134504613333034.846111111111,133.55
    P25266259176Bicchu-cho (Bitchu-cho), Takahashi City, Okayama, JapanJapanJMPS99_328JMPS99_328Michelle_0043Michelle_0043Okayamalite 1344559133255734.766388888889,133.4325
    P25266276533Fuka, Bicchu-cho (Bitchu-cho), Takahashi City, Okayama, JapanJapanJMPS99_328JMPS99_328Michelle_0043Michelle_0043Okayamalite 1344559133255834.766388888889,133.43277777778
    MDO252662202Fuka Mine, Fuka, Bicchu-cho (Bitchu-cho), Takahashi City, Okayama, JapanJapan2202Fuka Mine, Fuka, Bicchu-cho (Bitchu-cho), Takahashi City, Okayama, JapanJMPS99_328JMPS99_328Michelle_0043Michelle_0043Okayamalite 134460133255934.766666666667,133.43305555556
    12362NorwayNorwayOkayamalite 15736269411657.607222222222,9.6877777777778
    14334Aust-Agder, NorwayNorwayOkayamalite 1584208214558.7,8.3625
    2457Arendal, Aust-Agder, NorwayNorwayOkayamalite 1583013849058.503611111111,8.8166666666667
    MD48127Arendal Iron Mines, Arendal, Aust-Agder, NorwayNorwayOkayamalite 1582808461958.466666666667,8.7719444444444

    This mineral directly occurs at 2 localities (2 localities according to mindat, 10 localities if parents are counted as well)
    Of the 2 localities at which this mineral occurs, 1 has an age. (6 of the 10 parent localities have ages)


    MDThe mineral occurs at this locality according to MED, but does not have an age yet.
    MDThe mineral occurs at this locality according to MED, and has an age.
    The mineral occurs at some child of this locality.
    The locality at which the mineral occurs does not have an age...this is the closest parent locality with an age, relative to that mineral. This is not ideal.

    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.

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    If a locality has both a GPS coordinate, and either contains or has at least one child locality containing at least one of the minerals listed above, then this map displays a single marker for that locality.

     This bottom-level locality is directly dated. (1 total)
     This locality is directly dated, but is not bottom-level. (0 total)
     This locality is not directly dated, and is not bottom-level. (5 total)

     This bottom-level locality has an age assigned to it from some other locality. (0 total)
     This locality does not have an age assigned to it. (0 bottom-level + 4 top/mid-level = 4 total)

       






    All locality data graciously provided by mindat.org

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