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: Keystoneite

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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
    22266ArmeniaArmeniaKeystoneite 14017364555040.293333333333,45.097222222222
    122259Gelark'unik' Province (Geghark'unik'), ArmeniaArmeniaKeystoneite 1401204551040.2,45.85
    280553Vardenis, Gelark'unik' Province (Geghark'unik'), ArmeniaArmeniaKeystoneite 1401204551040.2,45.85
    MD10205Zod Mine (Sotk Deposit), Vardenis, Gelark'unik' Province (Geghark'unik'), ArmeniaArmeniaKeystoneite 1401204551040.2,45.85
    P65.503366USAUSAGSAM109_237GSAM109_237Hg-00080Hg-00080Keystoneite 1374912-83-42-4937.82,-83.713611111111
    P5.303424California, USAUSAMD19_202MD19_202Hg-00034Hg-00034Keystoneite 1374954-120-44-337.831666666667,-120.73416666667
    P5.3020929Tuolumne Co., California, USAUSAMD19_202MD19_202Hg-00034Hg-00034Keystoneite 137581-120-11-2737.966944444444,-120.19083333333
    P5.3098002Mother Lode Belt, Tuolumne Co., California, USAUSAMD19_202MD19_202Hg-00034Hg-00034Keystoneite 137541-120-22-2637.900277777778,-120.37388888889
    RP5.30250019Coulterville District, Mother Lode Belt, Tuolumne Co., California, USAUSA3581Golden Rule Mine, Jumper & Golden Rule Group (Jumper Mine; Jumper Claim; Jumper Deposit; New Era Claim), Jamestown Mine (Jamestown Group), Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USAMD19_202MD19_202Hg-00034Hg-00034Keystoneite 1374534-120-14-5237.759444444444,-120.24777777778
    RP5.30250047Peñon Blanco Peak, Coulterville District, Mother Lode Belt, Tuolumne Co., California, USAUSA3581Golden Rule Mine, Jumper & Golden Rule Group (Jumper Mine; Jumper Claim; Jumper Deposit; New Era Claim), Jamestown Mine (Jamestown Group), Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USAMD19_202MD19_202Hg-00034Hg-00034Keystoneite 1374534-120-14-5237.759444444444,-120.24777777778
    MDRO5.3020926McAlpine Mine, Peñon Blanco Peak, Coulterville District, Mother Lode Belt, Tuolumne Co., California, USAUSA3581Golden Rule Mine, Jumper & Golden Rule Group (Jumper Mine; Jumper Claim; Jumper Deposit; New Era Claim), Jamestown Mine (Jamestown Group), Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USAMD19_202MD19_202Hg-00034Hg-00034Keystoneite 1374558-120-15-937.766111111111,-120.2525
    P65.503585Colorado, USAUSAGSAM109_237GSAM109_237Hg-00080Hg-00080Keystoneite 1385532-105-31-5138.925555555556,-105.53083333333
    P65.503590Boulder Co., Colorado, USAUSAGSAM109_237GSAM109_237Hg-00080Hg-00080Keystoneite 140152-105-19-1640.031111111111,-105.32111111111
    P65.5024262Magnolia District, Boulder Co., Colorado, USAUSA24262Magnolia District, Boulder Co., Colorado, USAGSAM109_237GSAM109_237Hg-00080Hg-00080Keystoneite 1395944-105-24-4139.995555555556,-105.41138888889
    MDRO65.503592Keystone Mine, Magnolia District, Boulder Co., Colorado, USAUSA24262Magnolia District, Boulder Co., Colorado, USAGSAM109_237GSAM109_237Hg-00080Hg-00080Keystoneite 1395918-105-22-439.988333333333,-105.36777777778
    MDRO65.505943Mountain Lion Mine - Keystone Vein, Magnolia District, Boulder Co., Colorado, USAUSA24262Magnolia District, Boulder Co., Colorado, USAGSAM109_237GSAM109_237Hg-00080Hg-00080Keystoneite 1395927-105-22-1139.990833333333,-105.36972222222

    This mineral directly occurs at 4 localities (4 localities according to mindat, 16 localities if parents are counted as well)
    Of the 4 localities at which this mineral occurs, 3 have an age. (12 of the 16 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. (0 total)
     This locality is directly dated, but is not bottom-level. (1 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. (3 total)
     This locality does not have an age assigned to it. (1 bottom-level + 3 top/mid-level = 4 total)

       







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