454 



CHARACTERISTIC. 



CLASS II. 



Streak orange-yellow ... aurora-red. 

 H. = 1-5 ... 2-0. 

 G. =: 3-5 ... 3-6. 



Realgar. iii. 49. 



3. PRISMATIC. Prismatic. P = 106 38', 84 58', 143 17'. 

 Cleavage, P. P + co = 101 59'. Imperfect. 

 Streak uncoloured .., sulphur-yellow. 

 H. = 1-5 ... 2-5. 

 G. = 1-9 ... 2-1. 



Sulohur. iii. 52. 



