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



Only display mineral occurrences with a max age below:  and a max age above:    
Alternately, only display mineral occurrences without an age:


  • 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: Douglasite

      Jump to bottom of table
    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
    8188CanadaCanadaDouglasite 1532027-90-3-4053.340833333333,-90.061111111111
    19235Northwest Territories, CanadaCanadaDouglasite 1644011-117-55064.669722222222,-117.91666666667
    21014Mackenzie District, Northwest Territories, CanadaCanadaDouglasite 1634321-119-26-163.7225,-119.43361111111
    281321Fort Norman, Mackenzie District, Northwest Territories, CanadaCanadaDouglasite 1651157-124-38-1465.199166666667,-124.63722222222
    MD192180Golden Deposit, Fort Norman, Mackenzie District, Northwest Territories, CanadaCanadaDouglasite 1651157-124-38-1465.199166666667,-124.63722222222
    14244GermanyGermanyDouglasite 151261810221151.438333333333,10.369722222222
    22228Saxony-Anhalt, GermanyGermanyDouglasite 151444511325251.745833333333,11.547777777778
    1901Stassfurt Potash Deposit, Saxony-Anhalt, GermanyGermanyDouglasite 151504411302251.845555555556,11.506111111111
    218392Egeln, Stassfurt Potash Deposit, Saxony-Anhalt, GermanyGermanyDouglasite 15156191126051.938611111111,11.433333333333
    1924Westeregeln, Egeln, Stassfurt Potash Deposit, Saxony-Anhalt, GermanyGermanyDouglasite 15157281123351.957777777778,11.384166666667
    MD1902Douglashall, Westeregeln, Egeln, Stassfurt Potash Deposit, Saxony-Anhalt, GermanyGermanyDouglasite 15157281123451.957777777778,11.384444444444
    P26025214247PolandPolandMM80_277MM80_277Michelle_295Michelle_295Douglasite 151374619245551.629444444444,19.415277777778
    P260252125447Greater Poland Voivodeship, PolandPolandMM80_277MM80_277Michelle_295Michelle_295Douglasite 1523310172952.552777777778,17.035833333333
    P260252309552Koło Co., Greater Poland Voivodeship, PolandPolandMM80_277MM80_277Michelle_295Michelle_295Douglasite 152142718552052.240833333333,18.922222222222
    MDO26025260387Kłodawa Salt Deposit, Koło Co., Greater Poland Voivodeship, PolandPoland60387Kłodawa Salt Deposit, Koło Co., Greater Poland Voivodeship, PolandMM80_277MM80_277Michelle_295Michelle_295Douglasite 152142718552152.240833333333,18.9225

    This mineral directly occurs at 3 localities (3 localities according to mindat, 15 localities if parents are counted as well)
    Of the 3 localities at which this mineral occurs, 1 has an age. (4 of the 15 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.

    In order to zoom in/out on the map, you'll need to click inside the map first
    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. (3 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. (2 bottom-level + 9 top/mid-level = 11 total)

       






    All locality data graciously provided by mindat.org

    All age data...

    Other copyright data...