Vv 



LOANED BY FOOTE MINERAL CO, 



Rutilated Quartz, polished (Rrazil.) 

 Rose yuartz (Black Hills.) 



QUARTZ (crystalline.) 

 Smoky Quartz (SwitzeriandJ 



461 



COPYRIGHT 1902, BY A. w. MUMfORD, CHICAM. 



Amefhyst (Virginia.) 

 Amethyst iMoutana.) 



