8 PHYSIOGRAPHY. CLASS II. 



Kapnik in Transylvania, where it is found with dodecahe- 

 dral Garnet-blende, tetrahedral Copper-glance, &c. had 

 likewise been known long ago. It Jias been found after- 

 wards in large and magnificent crystals, at Neudorf in An- 

 halt, also at Andreasberg in the Hartz. It occurs at Brauns- 

 dorf in Saxony in a vein of rhombohedral Quartz, contain- 

 ing argentiferous prismatic Arsenkal-pyrites, at Neusohl in 

 Hungary, at Offenbanya in Transylvania, with ores of gold, 

 and in other localities. 



4. PRISMATIC COPPER-GLANCE. 



Khomboidal Copper-Glance, or Vitreous Copper-Ore. JAM. 

 Syst. Vol. III. p. 328. Prismatic Copper-Glance, or 

 Vitreous Copper. Man. p. 278. Vitreous Copper. Sul- 

 phuret of Copper. PHILL. p. 297 Kupferglas. WEKN. 

 Hoffm. H. B. III. 2. S. 103. Kupferglanz. HAUSM. 

 I. S. 142. Kupferglanz. LEONH. S. 254. Cuivre 

 sulfure'. HAUY. Trait^, T. III. p. 551. Tabl. comp. p. 

 87. Traite', 2de Ed. T. III. p. 454. 



Fundamental form. Scalene four-sided pyramid. 

 P = 126 52', 125 22', 80 6'. Vol. I. Fig. 9. AP. 



a : b : c = 1 : V 2-95 : V 2-80. 



Simple forms. P oo ; P (P) ; (Pr + oo) 3 (d) 

 = 63 48'; (P) 3 (a) 14820', 65 28', 124 11'; 

 (Pr 4- oo) 5 (e) = 114 16'; r (o) = 119 35'; 

 fr+l 97 41'; Pr-f OD(/?); Pr + oo (*). 



Char, of Comb. Prismatic. 



Combinations. 1. Pr. Pr -f- oo. Pr -f oo. 



2, (P) 3 . (Pr + oo) 5 . Pr -f oo. Sim. Fig. 7. 

 The individuals of Fig. 41. 



3. fr. P. (P) 5 . (Pr+oo) 5 . Pr+oo. p r -f oo. 

 Sim. Fig. 30. All of them from Cornwall. 



Cleavage, traces of ?r, very imperfect. Frac- 

 ture conchoidal. Surface, most of the forms 

 smooth, only the faces parallel to the axis, and 



