I 



Gold Mines of Georgia. 



9 



the mines in this variety, acquires for it the name of horn flint. The 

 structure is frequently granular and slaty in the same specimen ; there 



are plates of talc interposed between the layers, and the gold occupies 

 the same situation. The crystals of quartz are sometimes radiated 

 from a nucleus. These various kinds of quartz are the gangues or 

 matrices in which the gold is found, and besides gold, they contain 

 iron pyrites jn cubic and pseudomorphous crystals, filling irregular 

 cavities, purple oxide of iron, ("Indian paint,") brown oxide of iron, 

 sulphur, &c. 



of 



on the other side of the vein. 



Vol. XXIV.— No. 1. 



correspon 



2 



