Sinjeng, Paul Ponar <br/><br/>
Mineralogy And Genesis Of Zoned Platinum Group Mineral Grains From The Leslie And Braken Gold Mines, Witwatersrand, South Africa 
Paul Ponar Sinjeng 
 - Cardiff  University Of Wales  1987 
 - 47pg.  ill.  30cm 
<br/><br/> Includes reference index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Platinum