Mineralogy Database

Spodiophyllite Mineral Data

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General Spodiophyllite Information

Help on Chemical  Formula: Chemical Formula: (Na,K)4(Mg,Fe++)3(Fe+++,Al)2(Si8O24)
Help on Composition: Composition: Molecular Weight = 910.57 gm
   Potassium   4.29 %  K     5.17 % K2O
   Sodium      7.57 %  Na   10.21 % Na2O
   Magnesium   6.01 %  Mg    9.96 % MgO
   Aluminum    1.48 %  Al    2.80 % Al2O3
   Iron       13.80 %  Fe    5.92 % FeO / 13.15 % Fe2O3
   Silicon    24.68 %  Si   52.79 % SiO2
   Oxygen     42.17 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na3KMg2.25Fe2+0.75Fe3+1.5Al0.5Si8O24
Help on Environment: Environment: Related to tainiolite?
Help on IMA Status: IMA Status: Discredited IMA 1998 (Mica Nomenclature Subcommittee) - Valid Species (PreIMA) 1900
Help on Locality: Locality: Narsarsuk, Julianehaab distr., southern Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for SPODIOS (color ash) and PYLLON (leaf) habit.