Mineralogy Database

Steenstrupine-(Ce) Mineral Data

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General Steenstrupine-(Ce) Information

Help on Chemical  Formula: Chemical Formula: Na14Ce6Mn++Mn+++Fe++2(Zr,Th)(Si6O18)2(PO4)7•3(H2O)
Help on Composition: Composition: Molecular Weight = 3,142.39 gm
   Sodium      10.24 %  Na   13.81 % Na2O
   Cerium      26.75 %  Ce   31.34 % Ce2O3
   Thorium      1.85 %  Th    2.10 % ThO2
   Zirconium    2.18 %  Zr    2.94 % ZrO2
   Manganese    3.50 %  Mn    2.26 % MnO /  2.51 % Mn2O3
   Iron         3.55 %  Fe    4.57 % FeO
   Silicon     10.73 %  Si   22.94 % SiO2
   Phosphorus   6.90 %  P    15.81 % P2O5
   Hydrogen     0.19 %  H     1.72 % H2O
   Oxygen      34.11 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na14Ce6Mn2+Mn3+Fe2+2Zr0.75Th0.25(Si6O18)2(PO4)7�3(H2O)
Help on Environment: Environment: Charateristic mineral associated with ultra-agpaitic pegmatites of nepheline syenites and sodalite syenites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1881
Help on Locality: Locality: Kangerdluarsuc, Julianehaab district, Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name for Knud Hohannes Vogelius Steenstrup (1842-1913), geologist, Copenhagen, Denmark.
Help on Name Pronunciation: Name Pronunciation: Steenstrupine-(Ce) + Pronunciation Say STEENSTRUPINE-(CE)