Mineralogy Database

Vertumnite Mineral Data

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General Vertumnite Information

Help on Chemical  Formula: Chemical Formula: Ca8Al4(Al4Si5)O12[(OH)36•10(H2O)
Help on Composition: Composition: Molecular Weight = 1,683.36 gm
   Strontium   0.52 %  Sr    0.62 % SrO
   Calcium    18.57 %  Ca   25.98 % CaO
   Aluminum   13.46 %  Al   25.44 % Al2O3
   Silicon     8.51 %  Si   18.20 % SiO2
   Hydrogen    3.34 %  H    29.81 % H2O
   Oxygen     55.60 %  O
             ______        ______ 
             100.00 %      100.05 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca7.8Sr0.1Al8.4Si5.1O12.6(OH)36.1•9.8(H2O)
Help on Environment: Environment: As a late-forming crystals inside a small cavity in phonolite.
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Found in a quarry at Campomorto, Montalto di Castro, Lazio, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Vertumnus, the god worshipped by the ancient Etruscan people who inhabited the region where the mineral was found.
Help on Name Pronunciation: Name Pronunciation: Vertumnite + Pronunciation Say VERTUMNITE
Help on Synonym: Synonym: ICSD 100407
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