Mineralogy Database

Tranquillityite Mineral Data

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General Tranquillityite Information

Help on Chemical  Formula: Chemical Formula: Fe++8(Zr,Y)2Ti3Si3O24
Help on Composition: Composition: Molecular Weight = 1,239.95 gm
   Yttrium     3.59 %  Y     4.55 % Y2O3
   Zirconium  11.04 %  Zr   14.91 % ZrO2
   Titanium   11.58 %  Ti   19.33 % TiO2
   Iron       36.03 %  Fe   46.35 % FeO
   Silicon     6.80 %  Si   14.54 % SiO2
   Oxygen     30.97 %  O
             ______        ______ 
             100.00 %       99.68 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+8Zr1.5Y0.5Ti3Si3O24
Help on Environment: Environment: In mare and non-mare basalts on the Moon.
Help on IMA Status: IMA Status: Approved IMA 1971
Help on Locality: Locality: Tranquility Base, Moon (Apollo 11). Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tranquillityite + Pronunciation Say TRANQUILLITYITE