Characteristic Study of Pyrite in Wenglang Gold Deposit in Congjiang,Guizhou

Wenglang gold deposit in Congjiang is controlled by structural alteration zone.By gold potentiality test to the alteration rock and its pyrite ore,it's found that the relationship between pyrite and gold mineralization.In this paper,it studies the pyrite character of this deposit by use mineralography,chemical analyses,electro probe and other geochemical measures.The result shows that the pyrite which the gold potentiality is good,its grain usually is small,the gold potentiality of pyrite in early generation is better than in the late generation.The gold is formed in the media environment of poor and low S fugacity.The gold content of pyrite which the S is surplus in the unit cell is higher.