y 
18-14 329 «a9 0-47 
0°84 1:26 3 
“2 018 
4°70 | 2°26 9-03 
eves 7882 81-05 89°89 93°80 80°70 
0-43 1:09 0-86 os6 139 881 
ee 
It may be interesting to give for comparison the results o 
b : 
f an 
analysis of a Specimen made by Mr. Teipps) although the 
0 
" “ . > $ 
amount of sulphur is evidently too low. He found: 
Tea, - - 93:1 or Galena, - - 26:93 
Ps ob 0°21 “ Silverglance, - O24 
Copper, - + 5610 “ Copperglance, - 70°26 
BME ED agp “ Pyrite, - - 3820 
Sulphur, - - 1866 
99°78 100°63 
This ¢ mposition corresponds, nearly, with the formula 4Cu,S 
+PDS, which requires 58°68 copper, 98.50 lead and 18°33 sul hat. 
La . . . . an 
Coatings of a radiated structure of ;' to $ of an inch in thick- 
con or concentrically radiated semi-globular masses or tufts. It 
II. The partly altered millerite. 
Sulphur, 33°60 
087 or CugS 1°09 Copper, 463 or CugS 580 
6808 “ Ni Nickel & Cobalt, 59°96 “ (NiCo)S 92-48 
re NiS 97-29 e t, cas = bet oF 
089 ron, 
0°63 Insoluble, 054 
99-90 100-05 100-25 
6. Proustite (?) 
| Peed ulver, microscopic crystals of a bright cochineal red color, 
_ "" appear to be proustite. 
Although the quantity is too 
