ORDER v. PUISMATIC COBALT-MICA. 185 



v 



Char of Comb. Hemi-prismatic. 1 = 70 33'. 



Inclination of P GO on ?r + oc = 99 47'. 

 Combinations. 1. fr + GO. Pr + oo. Fig. 

 46. Schneeberg, Saxony. 



ilfLTL?. (Pr 4- QD) 5 . Pr + oc. 





Ai 2 



Flatten, Bohemia. 



3. *E. - *L+*. (fr + ).. f r + ao. 

 Pr + (3D. Schneeberg. 



4. ** |. (Pr+ QD)'. (?r+oo) 5 . ?r + oo. 



c ~ 



Pr + QD. Fig. 172. Schneeberg. 

 Cleavage, Pr + oo highly perfect. Traces of Pr + op 



4 p r _ g 



and I __ . Fracture not observable. Sur- 



face, Pr + oo streaked parallel to the edges of 

 combination with Pr + QD, the rest of the faces 

 streaked parallel to those with Pr -j- oo. 



Lustre pearly upon Pr -f oo, particularly if pro- 

 duced by cleavage. The rest of the faces pos- 

 sess adamantine lustre inclining to vitreous. 



Colour, crimson-red, cochineal-red, peachblossom- 

 red, sometimes pearl -grey or greenish-grey. The 

 red tints of the former, by transmitted light, in- 

 cline much more to blue, if seen in a direction 

 perpendicular to Pr -f- oc, than in that perpen- 

 dicular to Pr + oo. Streak corresponding to 



