CATALOGUE OF MINERALS. 



B. Sl'LPHlTRETS, ARSEXIIRETS, ETC. 



I. BINARY COMPOUNDS. 



Compounds of Elements of the Arsenic Group with 

 one another. 



29. 

 30. 

 31. 

 32. 

 33. 



Realgar 

 Orpiment * 

 Dimorphine 

 Bismuthine * 

 Stibnite * 



AsS 

 As^S' 

 As<S» 

 Bi^Ss 



i: 



