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: Slawsonite

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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
    P11679498188CanadaCanadaMP98_55GSCOF5796Jen_0000520Jen_0001010Slawsonite 1532027-90-3-4053.340833333333,-90.061111111111
    P116794914233Ontario, CanadaCanadaMP98_55GSCOF5796Jen_0000520Jen_0001010Slawsonite 1444832-80-13-4044.808888888889,-80.227777777778
    P1167949572Thunder Bay District, Ontario, CanadaCanadaOceanic Arc (Subduction)MP98_55GSCOF5796Jen_0000520Jen_0001010Slawsonite 1485515-88-3-2148.920833333333,-88.055833333333
    P1167949255435Killala Lake Area, Thunder Bay District, Ontario, CanadaCanadaMP98_55GSCOF5796Jen_0000520Jen_0001010Slawsonite 14927-86-43-349.035277777778,-86.7175
    MDO1167949107132Prairie Lake Carbonatite, Killala Lake Area, Thunder Bay District, Ontario, CanadaCanada107132Prairie Lake Carbonatite, Killala Lake Area, Thunder Bay District, Ontario, CanadaMP98_55GSCOF5796Jen_0000520Jen_0001010Slawsonite 14927-86-43-349.035277777778,-86.7175
    7944Czech RepublicCzech RepublicSlawsonite 14951141523449.853888888889,15.384444444444
    41574Central Bohemian Region, Czech RepublicCzech RepublicSlawsonite 149564014342049.944444444444,14.572222222222
    187120Beroun District, Central Bohemian Region, Czech RepublicCzech RepublicSlawsonite 149534313595049.895277777778,13.997222222222
    MD301849Rovina, Beroun District, Central Bohemian Region, Czech RepublicCzech RepublicSlawsonite 149552414131849.923333333333,14.221666666667
    125715Moravian-Silesian Region, Czech RepublicCzech RepublicSlawsonite 14948181832949.805,18.058055555556
    145823Frýdek-Místek District, Moravian-Silesian Region, Czech RepublicCzech RepublicSlawsonite 149412218202449.689444444444,18.34
    MD205335Krmelín, Frýdek-Místek District, Moravian-Silesian Region, Czech RepublicCzech RepublicSlawsonite 149432418144149.723333333333,18.244722222222
    MD294568Řepiště, Frýdek-Místek District, Moravian-Silesian Region, Czech RepublicCzech RepublicSlawsonite 14944191818949.738611111111,18.3025
    268756Nový Jičín District, Moravian-Silesian Region, Czech RepublicCzech RepublicSlawsonite 14937271812549.624166666667,18.023611111111
    292741Bludovice, Nový Jičín District, Moravian-Silesian Region, Czech RepublicCzech RepublicSlawsonite 14934221811749.572777777778,18.021388888889
    MD292743Čertův Mlýn, Bludovice, Nový Jičín District, Moravian-Silesian Region, Czech RepublicCzech RepublicSlawsonite 14934161804249.571111111111,18.011666666667
    14488JapanJapanSlawsonite 135195713558335.3325,135.9675
    29795Kochi, JapanJapanSlawsonite 133408133332933.668888888889,133.55805555556
    144143Kochi City, Kochi, JapanJapanSlawsonite 10000000,0
    262465Engyouji (Engyoji), Kochi City, Kochi, JapanJapanSlawsonite 10000000,0
    MD122756Engyoji Rodingites, Engyouji (Engyoji), Kochi City, Kochi, JapanJapanSlawsonite 10000000,0
    262299Rendai, Kochi City, Kochi, JapanJapanSlawsonite 10000000,0
    MD47311Tanaka Olivine Mining Co. Quarry, Rendai, Kochi City, Kochi, JapanJapanSlawsonite 10000000,0
    262631Konan City, Kochi, JapanJapanSlawsonite 10000000,0
    MD175696Sarusaka, Konan City, Kochi, JapanJapanSlawsonite 10000000,0
    20014Niigata, JapanJapanSlawsonite 1374154138563837.698333333333,138.94388888889
    MD8249Itoigawa City, Niigata, JapanJapanSlawsonite 137126137475837.023888888889,137.79944444444
    P0.4890.4693366USAUSANAVDATNAVDATNAVDAT-61972NAVDAT-61972Slawsonite 1374912-83-42-4937.82,-83.713611111111
    4033North Carolina, USAUSASlawsonite 1353720-79-53-1935.622222222222,-79.888611111111
    23244Alleghany Co., North Carolina, USAUSASlawsonite 1363151-81-10-636.530833333333,-81.168333333333
    29218Sparta, Alleghany Co., North Carolina, USAUSASlawsonite 1363257-81-5-4236.549166666667,-81.095
    MD268188Bald Knob, Sparta, Alleghany Co., North Carolina, USAUSASlawsonite 1363258-81-5-4336.549444444444,-81.095277777778
    4060Oregon, USAUSASlawsonite 144316-121-32-244.518333333333,-121.53388888889
    24210Wallowa Co., Oregon, USAUSASlawsonite 1452416-117-12-3345.404444444444,-117.20916666667
    MD105734Martin Bridge Formation, Wallowa Co., Oregon, USAUSASlawsonite 10000000,0
    P0.4890.4694227Wyoming, USAUSANAVDATNAVDATNAVDAT-61972NAVDAT-61972Slawsonite 14355-107-11-4443.084722222222,-107.19555555556
    P0.4890.46923733Park Co., Wyoming, USAUSANAVDATNAVDATNAVDAT-61972NAVDAT-61972Slawsonite 1443233-109-27-5644.5425,-109.46555555556
    P0.4890.469277797Grand Canyon Of The Yellowstone, Park Co., Wyoming, USAUSANAVDATNAVDATNAVDAT-61972NAVDAT-61972Slawsonite 1444510-110-24-1944.752777777778,-110.40527777778
    MDO0.4890.469214684Seven Mile Well, Grand Canyon Of The Yellowstone, Park Co., Wyoming, USAUSA214684Seven Mile Well, Grand Canyon Of The Yellowstone, Park Co., Wyoming, USANAVDATNAVDATNAVDAT-61972NAVDAT-61972Slawsonite 1444511-110-24-1944.753055555556,-110.40527777778

    This mineral directly occurs at 12 localities (12 localities according to mindat, 39 localities if parents are counted as well)
    Of the 12 localities at which this mineral occurs, 2 have an age. (10 of the 39 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. (2 total)
     This locality is directly dated, but is not bottom-level. (0 total)
     This locality is not directly dated, and is not bottom-level. (8 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. (8 bottom-level + 21 top/mid-level = 29 total)

       






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