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: Alforsite

      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
    8188CanadaCanadaAlforsite 1532027-90-3-4053.340833333333,-90.061111111111
    21838Yukon, CanadaCanadaAlforsite 162353-134-48-3962.584166666667,-134.81083333333
    45767Watson Lake Mining District, Yukon, CanadaCanadaAlforsite 1611159-130-20-4961.199722222222,-130.34694444444
    259627Itsi Mt., Watson Lake Mining District, Yukon, CanadaCanadaAlforsite 1625045-1300-2062.845833333333,-130.00555555556
    259628Wilson Lake, Itsi Mt., Watson Lake Mining District, Yukon, CanadaCanadaAlforsite 1625045-1300-2062.845833333333,-130.00555555556
    MD27151Gun Claim (Gunn Claim), Wilson Lake, Itsi Mt., Watson Lake Mining District, Yukon, CanadaCanadaAlforsite 1625045-1300-2062.845833333333,-130.00555555556
    2285MexicoMexicoAlforsite 1222655-102-27-1522.448611111111,-102.45416666667
    14346Baja California, MexicoMexicoAlforsite 131515-115-52-431.851388888889,-115.86777777778
    279786Tres Pozos, Baja California, MexicoMexicoAlforsite 132200-116-30032.333333333333,-116.5
    MD20114Madrelena Mine, Tres Pozos, Baja California, MexicoMexicoAlforsite 132200-116-30032.333333333333,-116.5
    P542663366USAUSAMR30_411MR36_1Michelle_491Michelle_501Alforsite 1374912-83-42-4937.82,-83.713611111111
    P542663424California, USAUSAMR30_411MR36_1Michelle_491Michelle_501Alforsite 1374954-120-44-337.831666666667,-120.73416666667
    P145663453Fresno Co., California, USAUSAMR36_1MR36_1Michelle_501Michelle_501Alforsite 1365611-119-19-2336.936388888889,-119.32305555556
    P14566209815Big Creek-Rush Creek District, Fresno Co., California, USAUSA209815Big Creek-Rush Creek District, Fresno Co., California, USAMR36_1MR36_1Michelle_501Michelle_501Alforsite 13708-119-15-3337.002222222222,-119.25916666667
    RP14566209816Rush Creek Deposit, Big Creek-Rush Creek District, Fresno Co., California, USAUSA209815Big Creek-Rush Creek District, Fresno Co., California, USAMR36_1MR36_1Michelle_501Michelle_501Alforsite 13708-119-15-3337.002222222222,-119.25916666667
    RP145663457Big Creek, Rush Creek Deposit, Big Creek-Rush Creek District, Fresno Co., California, USAUSA209815Big Creek-Rush Creek District, Fresno Co., California, USAMR36_1MR36_1Michelle_501Michelle_501Alforsite 1365518-119-14-5036.921666666667,-119.24722222222
    MDRY145668237Esquire No. 7 Claim, Big Creek, Rush Creek Deposit, Big Creek-Rush Creek District, Fresno Co., California, USAUSA209815Big Creek-Rush Creek District, Fresno Co., California, USAMR36_1MR36_1Michelle_501Michelle_501Alforsite 136550-119-14-4236.916666666667,-119.245
    P54225114589Mariposa Co., California, USAUSAMR30_411MR30_411Michelle_491Michelle_491Alforsite 1373159-119-52-2037.533055555556,-119.87222222222
    P54225182371East Belt, Mariposa Co., California, USAUSAMR30_411MR30_411Michelle_491Michelle_491Alforsite 1373838-119-56-1237.643888888889,-119.93666666667
    P542251249045Clearing House District, East Belt, Mariposa Co., California, USAUSAMR30_411MR30_411Michelle_491Michelle_491Alforsite 1373959-119-51-4137.666388888889,-119.86138888889
    P542251215357Clearing House, Clearing House District, East Belt, Mariposa Co., California, USAUSAMR30_411MR30_411Michelle_491Michelle_491Alforsite 137404-119-53-337.667777777778,-119.88416666667
    P542251220064Trumbull Peak, Clearing House, Clearing House District, East Belt, Mariposa Co., California, USAUSAMR30_411MR30_411Michelle_491Michelle_491Alforsite 1374136-119-51-1637.693333333333,-119.85444444444
    MDO5422515530Trumbull Peak Ba-silicate Deposit, Trumbull Peak, Clearing House, Clearing House District, East Belt, Mariposa Co., California, USAUSA5530Trumbull Peak Ba-silicate Deposit, Trumbull Peak, Clearing House, Clearing House District, East Belt, Mariposa Co., California, USAMR30_411MR30_411Michelle_491Michelle_491Alforsite 1374130-119-51-5137.691666666667,-119.86416666667
    27196Tulare Co., California, USAUSAAlforsite 136179-118-47-5036.285833333333,-118.79722222222
    252774Dumtah, Tulare Co., California, USAUSAAlforsite 1361739-119-1-5736.294166666667,-119.0325
    MD25466Baumann Prospect (Bauman Ranch), Dumtah, Tulare Co., California, USAUSAAlforsite 1361730-119-1036.291666666667,-119.01666666667

    This mineral directly occurs at 5 localities (6 localities according to mindat, 26 localities if parents are counted as well)
    Of the 5 localities at which this mineral occurs, 2 have an age. (13 of the 26 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. (1 total)
     This locality is not directly dated, and is not bottom-level. (10 total)

     This bottom-level locality has an age assigned to it from some other locality. (1 total)
     This locality does not have an age assigned to it. (2 bottom-level + 11 top/mid-level = 13 total)

       







    All locality data graciously provided by mindat.org

    All age data...

    Other copyright data...