Mineralogy Database

Rengeite Mineral Data

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General Rengeite Information

Help on Chemical  Formula: Chemical Formula: Sr4ZrTi4Si4O22
Help on Composition: Composition: Molecular Weight = 1,063.06 gm
   Strontium        29.67 %  Sr   35.09 % SrO
   Calcium           0.38 %  Ca    0.53 % CaO
   La,Ce,Pr,Nd,Sm,   0.68 %  RE    0.79 % REE2O3
   Zirconium         6.86 %  Zr    9.27 % ZrO2
   Titanium         18.47 %  Ti   30.81 % TiO2
   Silicon          10.83 %  Si   23.17 % SiO2
   Oxygen           33.11 %  O
                   ______        ______ 
                   100.00 %       99.66 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sr3.6Ca0.1REE0.05Zr0.8Ti4.1Si4.1O22
Help on Environment: Environment: Anhedral grains in jadeite from blue omphacite-jadeite rock attributed to high-P/T metamorphism. The Sr-Zr-dominant analogue of perrierite.
Help on IMA Status: IMA Status: Approved IMA 1998 (Dana # Added)
Help on Locality: Locality: Itoigawa-Ohmi district, Niigata Prefecture, central Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Mt Renge, near the discovery location and the jadeitite-bearing Renge metamorphic belt.
Help on Synonym: Synonym: IMA1998-055