Mineralogy Database

Dachiardite-Ca Mineral Data

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General Dachiardite-Ca Information

Help on Chemical  Formula: Chemical Formula: (Ca,Na2,K2)5Al10Si38O96•25(H2O)
Help on Composition: Composition: Molecular Weight = 1,792.84 gm
   Cesium      0.82 %  Cs    0.86 % Cs2O
   Potassium   2.01 %  K     2.42 % K2O
   Barium      0.08 %  Ba    0.09 % BaO
   Sodium      0.54 %  Na    0.73 % Na2O
   Strontium   0.59 %  Sr    0.69 % SrO
   Calcium     3.44 %  Ca    4.82 % CaO
   Aluminum    7.31 %  Al   13.82 % Al2O3
   Iron        0.06 %  Fe    0.09 % Fe2O3
   Silicon    29.70 %  Si   63.54 % SiO2
   Hydrogen    1.41 %  H    12.62 % H2O
   Oxygen     54.04 %  O
             ______        ______ 
             100.00 %       99.67 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.54K0.92Na0.42Cs0.11Sr0.12Ba0.01Al4.86Fe3+0.02Si18.96O48�12.56(H2O)
Help on Environment: Environment: Hydrothermal zeolite that generally occurs in silica-rich environments in late states of granitic pegmatites and Si-rich basalts. Ca modifier added by zeolite nomenclatrue committee .
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1906
Help on Locality: Locality: Filone della Speranza, Monte Capanne, San Piero di Campo, island of Elba, Tuscany, Italy.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Antonio D'Achiardi (1839-1902), Professor of Mineralogy, Universit� di Pisa, Italy, who first described the mineral discovered by his son in a granitic pegmatite.
Help on Name Pronunciation: Name Pronunciation: Dachiardite-Ca + Pronunciation Say DACHIARDITE-CA
Help on Synonym: Synonym: Achiardite
  Dachiardite
  Svetlozarite - twinned