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

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.




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: Microsommite

      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
    14280FranceFranceMicrosommite 12720360-37-2827.343333333333,-0.62444444444444
    20192Auvergne-Rhône-Alpes, FranceFranceMicrosommite 1453017436745.504722222222,4.6019444444444
    6386Puy-de-Dôme, Auvergne-Rhône-Alpes, FranceFranceMicrosommite 14542402595945.711111111111,2.9997222222222
    18678Pontgibaud, Puy-de-Dôme, Auvergne-Rhône-Alpes, FranceFranceMicrosommite 14549492505545.830277777778,2.8486111111111
    131301Saint-Ours-les-Roches, Pontgibaud, Puy-de-Dôme, Auvergne-Rhône-Alpes, FranceFranceMicrosommite 14551162575245.854444444444,2.9644444444444
    MD43977Puy De Tunisset, Saint-Ours-les-Roches, Pontgibaud, Puy-de-Dôme, Auvergne-Rhône-Alpes, FranceFranceMicrosommite 14551172575245.854722222222,2.9644444444444
    P0.40.03314553ItalyItalyJP78_753RDSIMF40_73Michelle_0040Michelle_0127_aMicrosommite 14232712165742.535277777778,12.2825
    P0.402071Campania, ItalyItalyJP78_753JP78_753Michelle_0040Michelle_0040Microsommite 140525714243440.8825,14.409444444444
    P0.402094Naples, Campania, ItalyItalyJP78_753JP78_753Michelle_0040Michelle_0040Microsommite 14047221463040.789444444444,14.108333333333
    O0.402091Somma-Vesuvius Complex, Naples, Campania, ItalyItaly2091Somma-Vesuvius Complex, Naples, Campania, ItalyJP78_753JP78_753Michelle_0040Michelle_0040Microsommite 140491714245240.821388888889,14.414444444444
    2092Monte Somma, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 140501214241140.836666666667,14.403055555556
    132201Pollena - Trocchia Area, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 14051014235840.85,14.399444444444
    MD29835Pollena Quarries, Pollena - Trocchia Area, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 14051014235940.85,14.399722222222
    31646Sant'Anastasia, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 14051014245940.85,14.416388888889
    MD29885Cupa Dell'Olivella, Sant'Anastasia, Monte Somma, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 1405101424040.85,14.4
    145740Mt Vesuvius, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 140482314253340.806388888889,14.425833333333
    276698Terzigno, Mt Vesuvius, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 14047491428240.796944444444,14.467222222222
    MD156649Vitiello Quarry (Cava Vitiello), Terzigno, Mt Vesuvius, Somma-Vesuvius Complex, Naples, Campania, ItalyItalyMicrosommite 14047501428240.797222222222,14.467222222222
    132160Salerno, Campania, ItalyItalyMicrosommite 140393714592840.660277777778,14.991111111111
    230907Nocera Inferiore, Salerno, Campania, ItalyItalyMicrosommite 140471614385640.787777777778,14.648888888889
    MD30045Fiano Tuff Quarries, Nocera Inferiore, Salerno, Campania, ItalyItalyMicrosommite 140471714385740.788055555556,14.649166666667
    P0.220.0336960Tuscany, ItalyItalyRDSIMF40_73RDSIMF40_73Michelle_0140Michelle_0127_aMicrosommite 143333610502743.56,10.840833333333
    P0.220.03323765Grosseto Province, Tuscany, ItalyItalyRDSIMF40_73RDSIMF40_73Michelle_0140Michelle_0127_aMicrosommite 142452811135642.757777777778,11.232222222222
    P0.220.0338306Pitigliano, Grosseto Province, Tuscany, ItalyItaly8306Pitigliano, Grosseto Province, Tuscany, ItalyRDSIMF40_73RDSIMF40_73Michelle_0140Michelle_0127_aMicrosommite 142371311421642.620277777778,11.704444444444
    MDO0.220.0338305Case Collina (Toscopomici Quarry), Pitigliano, Grosseto Province, Tuscany, ItalyItaly8305Case Collina (Toscopomici Quarry), Pitigliano, Grosseto Province, Tuscany, ItalyRDSIMF40_73RDSIMF40_73Michelle_0140Michelle_0127_aMicrosommite 142383211434942.642222222222,11.730277777778
    20019TajikistanTajikistanMicrosommite 13973570561939.126388888889,70.938611111111
    145802Gorno-Badakhshan, TajikistanTajikistanMicrosommite 137321772303837.538055555556,72.510555555556
    MD123387Dunkeldyksky Alkaline Complex, Gorno-Badakhshan, TajikistanTajikistanMicrosommite 10000000,0

    This mineral directly occurs at 7 localities (8 localities according to mindat, 28 localities if parents are counted as well)
    Of the 7 localities at which this mineral occurs, 1 has an age. (8 of the 28 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. (2 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. (6 bottom-level + 14 top/mid-level = 20 total)

       






    All locality data graciously provided by mindat.org

    All age data...

    Other copyright data...