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	 Levinsonite-(Y) Mineral Data  |  |  | 
   
| General Levinsonite-(Y)  Information  | 
|  Chemical  Formula: | (Y,Nd,La)Al(SO4)2(C2O4)•12(H2O) | 
|  Composition: | Molecular Weight = 623.48 gm | 
|  | Lanthanum    2.23 %  La    2.61 % La2O3 | 
|  | Samarium     2.41 %  Sm    2.80 % Sm2O3 | 
|  | Gadolinium   2.52 %  Gd    2.91 % Gd2O3 | 
|  | Yttrium      4.28 %  Y     5.43 % Y2O3 | 
|  | Aluminum     4.33 %  Al    8.18 % Al2O3 | 
|  | Hydrogen     3.88 %  H    34.67 % H2O | 
|  | Carbon       3.85 %  C    11.55 % C2O3 | 
|  | Sulfur      10.29 %  S    25.68 % SO3 | 
|  | Neodymium    4.63 %  Nd    5.40 % Nd2O3 | 
|  | Oxygen      61.59 %  O | 
|  | ______        ______ | 
|  | 100.00 %       99.23 % = TOTAL OXIDE | 
|  Empirical Formula: | Y0.3Nd0.2La0.1Sm0.1Gd0.1Al(SO4)2(C2O4)�12(H2O) | 
|  Environment: | Supergene assemblage formed from weathering of pyritiferous phyllite. The yttrium dominant analog of Coskrenite-(Ce) but structurally different. | 
|  IMA Status: | Approved IMA 1996 (Dana # Added) | 
|  Locality: | Alum Cave Bluff, Great Smoky Mountains Park, Tennessee, USA. Link to MinDat.org Location Data. | 
|  Name Origin: | Named for Al A. Levinson of the University of Calgary, who is the originator of the nomenclature system used by REE minerals. | 
|  Synonym: | IMA1996-057 | 
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