59 



TAB. CXXXII. 



PLUMBUM sulphureum; var. antimoniatum. 

 Antimoniated Galena, or Sulphuret of Lead, 



Class 3. Metals. Order I. Homogeneous. 



Gen. 15. Lead. Spec. 3. Sulphuret of Lead. 



Div. 2. Imitative. Far. Antimoniated. 



Syn. Plomb sulfure antimonifere. Haily, 3. 462. 



i his is often found accompanying common Galena. 

 It is externally known to Mineralogists by the peculiar 

 small striated appearance which is attributed to the nature 

 of the crystallization of the Antimony^ and which seems 

 to derange the primitives of Common Galena ; so that one 

 Substance interrupting another may be recognized here j 

 and perhaps in some other place we may be able to show 

 something more important in the nature of the laws of 

 mixed crystallization. 



The specimen here figured was sent by my friend the 

 Rev. J. Harriman. It seems to be less antimoniated 

 towards thebase^ and somewhat resembling tab. 131=, 



