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	 Merrihueite Mineral Data  |  |  | 
   
| General Merrihueite  Information  | 
|  Chemical  Formula: | (K,Na)2(Fe++,Mg)5Si12O30 | 
|  Composition: | Molecular Weight = 1,126.96 gm | 
|  | Potassium   5.20 %  K     6.27 % K2O | 
|  | Sodium      1.02 %  Na    1.37 % Na2O | 
|  | Magnesium   2.70 %  Mg    4.47 % MgO | 
|  | Iron       18.58 %  Fe   23.91 % FeO | 
|  | Silicon    29.91 %  Si   63.98 % SiO2 | 
|  | Oxygen     42.59 %  O | 
|  | ______        ______ | 
|  | 100.00 %      100.00 % = TOTAL OXIDE | 
|  Empirical Formula: | K1.5Na0.5Fe2+3.75Mg1.25Si12O30 | 
|  Environment: | Rare, in a few chondules of a chondrite, as inclusions in clinopyroxenes. | 
|  IMA Status: | Approved IMA 1965 | 
|  Locality: | In the Mez�o-Madaras chondritic meteorite. Link to MinDat.org Location Data. | 
|  Name Origin: | Named for Craig M. Merrihue (?-1965), meteoriticist, of the Smithsonian Astrophysical Observatory, Cambridge, Massachusetts, USA. | 
|  Name Pronunciation: | Merrihueite  + Pronunciation   | 
|  Synonym: | ICSD 2717 | 
|  | PDF 21-1270 | 
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