Mineralogy Database

Lepidolite Mineral Data

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General Lepidolite Information

Help on Chemical  Formula: Chemical Formula: K(Li,Al)3(Si,Al)4O10(F,OH)2
Help on Composition: Composition: Molecular Weight = 388.30 gm
   Potassium  10.07 %  K    12.13 % K2O
   Lithium     3.58 %  Li    7.70 % Li2O
   Aluminum    6.95 %  Al   13.13 % Al2O3
   Silicon    28.93 %  Si   61.89 % SiO2
   Hydrogen    0.26 %  H     2.32 % H2O
   Oxygen     45.32 %  O
   Fluorine    4.89 %  F     4.89 % F
                -   %   F    -2.06 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KLi2AlSi4O10F(OH)
Help on Environment: Environment: Lithia-bearing pegmatites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1792
Help on Locality: Locality: Pala, San Diego Co., California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek lepidion - "scale" and lithos - "stone."
Help on Name Pronunciation: Name Pronunciation: Lepidolite + Pronunciation Say LEPIDOLITE
Help on Synonym: Synonym: Lithium Mica