CHARACTERISTIC. CLASS II. 



II. ZINC-BARYTE. Rhombohedral, prismatic. 



H. = 5-0. 



G. =3-3 ...4-5. 



Rhombohedral : G. above 4-0. 



1. PRISMATIC. Prismatic. Pr _ 1 = 128 27'. 



Cleavage, Pr = 116 40'. Somewhat more distinct, 

 (r + os) 3 = 76 7'- 



H. =: 5-0. 



G. = 3-3 ... 3-6. 



Prismatic Calamme. J. ii. 108, 



2. RHOMBOHEDRAL. Rhombohedral. R = 107 4(X. 



Cleavage, R. 



H. = 5*0. 



G. = 4-2 ... 4-5. 



Rhomboidal Calamme. J. ii. 111. 



III. SCHEELIUM-BARYTE. Pyramidal. 



H. = 4-0 ... 4-5. 

 G. = 6-0.... 6-1. 



1. PYRAMIDAL. Pyramidal. P = 107 27', 113 35'. 



Combinations hemi-pyramidal with parallel faces. 

 Cleavage, P + 1 = 100 8', 130 20'. P. J _- w. 

 Pyramidal Tungsten. J. ii. 113. 



IV. HAL-BARTTK. Prismatic. 



H. =3-0 ... 3-5. 

 G. = 3-6 ... 4-7. 



1. PERITOMOUS. Prismatic. 



Cleavage, P +00 5= 117 19'. Less distinct, r. 



Traces of Pr + 05. 

 H. = 3-5. 

 G. = 3-6 ... 3-8. 



Stronticmite. ii. 116. 



