Mineralogy Database

Aphthitalite Mineral Data

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General Aphthitalite Information

Help on Chemical  Formula: Chemical Formula: (K,Na)3Na(SO4)2
Help on Composition: Composition: Molecular Weight = 320.33 gm
   Potassium  27.46 %  K    33.08 % K2O
   Sodium     12.56 %  Na   16.93 % Na2O
   Sulfur     20.02 %  S    49.99 % SO3
   Oxygen     39.96 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2.25Na1.75(SO4)2
Help on Environment: Environment: 1. Incrustations in fumaroles of volcanos. 2. Small crystals in marine and continental evaporite deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1813
Help on Locality: Locality: Douglashall near Strassfurt, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "unalterable" and "salt" in allusion to its stability in air.
Help on Name Pronunciation: Name Pronunciation: Aphthitalite + Pronunciation Say APHTHITALITE
Help on Synonym: Synonym: Aphthalose
  ICSD 26014
  PDF 20-928
  Vesuvian Salt