Mineralogy Database

Ellestadite Mineral Data

Search Webmineral :
  
Advertisment

General Ellestadite Information

Help on Chemical  Formula: Chemical Formula: Ca5(SiO4,PO4,SO4)3(F,OH,Cl)
Help on Composition: Composition: Molecular Weight = 500.48 gm
   Calcium     40.04 %  Ca   56.02 % CaO
   Silicon     10.10 %  Si   21.61 % SiO2
   Phosphorus   5.57 %  P    12.76 % P2O5
   Hydrogen     0.06 %  H     0.54 % H2O
   Sulfur       1.92 %  S     4.80 % SO3
   Chlorine     0.71 %  Cl    0.71 % Cl
                 -   %   Cl   -0.16 % -O=Cl2   
   Oxygen      39.32 %  O
   Fluorine     2.28 %  F     2.28 % F
                 -   %   F    -0.96 % -O=F2    
              ______        ______ 
              100.00 %       97.60 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca5(SiO4)1.8(PO4)0.9(SO4)0.3F0.6(OH)0.3Cl0.1
Help on Environment: Environment: Metamorphosed limestone. Group name for hydroxylellestadite - chlorellestadite series.
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Crestmore quarry, 5 miles NW of Riverside, Riverside Co. California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Reuben B. Ellestad (1900-1993), American analytical chemist of Minneapolis, Minnesota, USA.
Help on Synonym: Synonym: ICSD 39775
  PDF 25-173
  Wilkeite