BULETINUL SOCIETĂŢII DE SCIINŢE 



181 



S — Pb 



M?tLit\ 5 (Pb Ag2) s > 2Sb2 S3 = Sb4 sn (Pb Ag2)5 



/S-(PbAg^). 

 Sb^-s- (PbAg 2 )^ b 



> 



Sb~Sv 



N S >> (Pb Ag 2 ) 



Sb(-S^ 



Sb^-S - (Pb Ag 2 ) 



\S — (Pb Ag 



Jordanit: 4 Pb S As- S 3 =As ! S 7 Pb* sau 



/S— Pb 



> s . 



As£_s— Pb 



As/_S— Pb 

 \s— Pb 



>s 



>s 



MeneyhinU Sb 2 S 7 Pb 1 



Tetraedrit (Sb As) 2 S 7 (Cu 2 ) 4 



Geocronit 5 Pb S Sb 2 S 3 = Sb 2 S 8 Pb 5 , sau : 



