Mineralogy Database

Eudidymite Mineral Data

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General Eudidymite Information

Help on Chemical  Formula: Chemical Formula: NaBeSi3O7(OH)
Help on Composition: Composition: Molecular Weight = 245.26 gm
   Sodium      9.37 %  Na   12.64 % Na2O
   Beryllium   3.67 %  Be   10.20 % BeO
   Silicon    34.35 %  Si   73.49 % SiO2
   Hydrogen    0.41 %  H     3.67 % H2O
   Oxygen     52.19 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaBe(Si3O7)(OH)
Help on Environment: Environment: A late-stage mineral in alkalic nepheline syenite pegmatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1887
Help on Locality: Locality: Island Ovre-Aro, Langesundfiord, Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek for well and twinned, in allusion to its common occurrence in twins.
Help on Name Pronunciation: Name Pronunciation: Eudidymite + Pronunciation Say EUDIDYMITE
Help on Synonym: Synonym: ICSD 26001
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