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	 Sanmartinite Mineral Data  |  |  | 
   
| General Sanmartinite  Information  | 
|  Chemical  Formula: | (Zn,Fe++)WO4 | 
|  Composition: | Molecular Weight = 310.85 gm | 
|  | Zinc      15.78 %  Zn   19.64 % ZnO | 
|  | Iron       4.49 %  Fe    5.78 % FeO | 
|  | Tungsten  59.14 %  W    74.58 % WO3 | 
|  | Oxygen    20.59 %  O | 
|  | ______        ______ | 
|  | 100.00 %      100.00 % = TOTAL OXIDE | 
|  Empirical Formula: | Zn0.75Fe2+0.25(WO4) | 
|  Environment: | Alteration product of scheelite in a quartz vein between granite and granite pegmatite intruding Precambrian crystalline schists. | 
|  IMA Status: | Valid Species (Pre-IMA) 1948 | 
|  Locality: | Los Cerrillos, seven km southwest of San Mart�in, San Luis Province, Argentina. Link to MinDat.org Location Data. | 
|  Name Origin: | Named for the locality. | 
|  Name Pronunciation: | Sanmartinite  + Pronunciation   | 
|  Synonym: | ICSD 84540 | 
|  | PDF 15-774 | 
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