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	 Hardystonite Mineral Data  |  |  | 
   
| General Hardystonite  Information  | 
|  Chemical  Formula: | Ca2ZnSi2O7 | 
|  Composition: | Molecular Weight = 313.71 gm | 
|  | Calcium  25.55 %  Ca   35.75 % CaO | 
|  | Zinc     20.84 %  Zn   25.94 % ZnO | 
|  | Silicon  17.91 %  Si   38.31 % SiO2 | 
|  | Oxygen   35.70 %  O | 
|  | ______        ______ | 
|  | 100.00 %      100.00 % = TOTAL OXIDE | 
|  Empirical Formula: | Ca2ZnSi2O7 | 
|  Environment: | Found in granular ore in a metamorphosed stratiform zinc deposit. | 
|  IMA Status: | Valid Species (Pre-IMA) 1899 | 
|  Locality: | Franklin, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data. | 
|  Name Origin: | Named for the Hardyston Township in which Franklin is situated. | 
|  Name Pronunciation: | Hardystonite  + Pronunciation   | 
|  Synonym: | ICSD 18114 | 
|  | PDF 35-745 | 
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