Mineralogy Database

Fraipontite Mineral Data

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General Fraipontite Information

Help on Chemical  Formula: Chemical Formula: (Zn,Al)3(Si,Al)2O5(OH)4
Help on Composition: Composition: Molecular Weight = 372.82 gm
   Aluminum   9.41 %  Al   17.78 % Al2O3
   Zinc      40.34 %  Zn   50.21 % ZnO
   Silicon   10.55 %  Si   22.56 % SiO2
   Hydrogen   1.08 %  H     9.66 % H2O
   Oxygen    38.62 %  O
            ______        ______ 
            100.00 %      100.21 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn2.3Al0.7Si1.4Al0.6O5(OH)4
Help on Environment: Environment: Alteration product of smithsonite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1927
Help on Locality: Locality: Vielle-Montagne, Belgium. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Julien Jean Joseph Fraipont (1857-1910), and Charles Fraipont, of Liege, Belgium, both geologists and paleontologists.
Help on Name Pronunciation: Name Pronunciation: Fraipontite + Pronunciation Say FRAIPONTITE
Help on Synonym: Synonym: Zinalsite