Poppleton, Howard O. <br/><br/>
Preliminary investigation of desilication of minerals with sulfur and carbon 
Poppleton, Howard O.; Campbell, Thomas T. 
 - Washington  Bureau of mines  1974 
 - 8 p. 
 - RI 7950 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA<br/>MINING
<br/><br/><label>Subjects--Index Terms: </label>MINERALES DE ALUMINIO MINERALES DE SILICATO ALUMINIUM ORES SILICATE ORES 
<br/><br/><label>Universal Decimal Class. No.: </label>622