|  |  | 
	 Freboldite Mineral Data  |  |  | 
   
| General Freboldite  Information  | 
|  Chemical  Formula: | CoSe | 
|  Composition: | Molecular Weight = 137.89 gm | 
|  | Cobalt    42.74 %  Co | 
|  | Selenium  57.26 %  Se | 
|  | ______ | 
|  | 100.00 % | 
|  Empirical Formula: | CoSe | 
|  Environment: | In dolomite veinlets. | 
|  IMA Status: | Valid Species (Pre-IMA) 1957 | 
|  Locality: | From the Trogtal quarry, Steinbruch, and at Rote Berg, St. Andreasberg, Harz. Link to MinDat.org Location Data. | 
|  Name Origin: | For Professor Georg Frebold of Hannover, Germany. | 
|  Name Pronunciation: | Freboldite  + Pronunciation   | 
|  Synonym: | ICSD 42541 | 
|  | PDF 15-464 | 
|  |