- 行业: Mining
 
- Number of terms: 33118
 
- Number of blossaries: 0
 
- Company Profile:
                        
 
  
                                                        The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...                             
                                                     
                        Containing iron and magnesium. Applied to certain dark silicate minerals, esp. amphibole, pyroxene, biotite, and olivine.    
    
    						Industry:Mining    
									Containing much bauxite; e.g., a bauxitic clay containing 47% to 65% alumina on a calcined basis, or a bauxitic shale abnormally high in alumina and notably low in silica.    
    
    						Industry:Mining    
									Containing one hydrogen atom replaceable by a metal with the formation of a salt.    
    
    						Industry:Mining    
									Containing water; having drops of included fluid; as enhydrous chalcedony.    
    
    						Industry:Mining