380 ANALYSES OF MINERALS. 



Mountain Kupfergruen (mountain green) or chrysocol from Siberia. 



S--"^"- rCopper - . . 40 



Oxigen - - - 10 



Carbonic acid - - 7 



SHex . - - 26 



Water - - - 17 



100 i 



vitreous cop- Kiipferglanzerz (Titreous copper ore). 



f^'""^- Copper - • - - 76-5 



Iron - - - 0'5 



Sulphur - - - 22 



Loss - - - 1 



100 



Gray copper Fahlerz (gray copper ore) from Froybcrg. 



ore from Frey- 

 berg. 



Another. 



Another. 



Copper 



- 



- 



- 



41 



Silver 



- 



- 



- 



0-4 



Arsenic 



- 



- 



- 



24-1 



Iron 



- 



- 



- 



22-3 



Sulphur 



- 



- 



- 



10 



Loss 



' 



" 



■ 



2 

 100 



Fahlerz from Kroner mine, Freyb 



erg. 





Copper 



- 





- 



48 



Silver 



- 





- 



0-5 



Iron 



- 







25-5 



Arsenic 



- 





- 



14 



Sulphur 



- ■ 





- 



10 



Loss 



- 





- 



2 



•*■ ' 









100 



Fahlerz from Jonas 



mine, 



Freyberg 







Copper 



- 



- 



- 



42-5 



Silver 



- 



- 



- 



0-9 



Iron 



- 



- 



- 



27-5 



Antimony 



- 



- 



- 



1-5 



Arsenic 



- 



- 



- 



15-6 



Sulphur 



- 



- 



- 



10 



Loss 







• 



2 



100 



Crystaltized 



