C U9 1 



II. Fragile. 



A. BISMUTH. 



; BISMUTH is of a white yellowifh colour, and 

 laminated texture ; above nine times heavier than 

 water, very fufible, foluble in the fulphuric mu- 

 riatic and nitric acids, and particularly in the laft, 

 and when diffolved in it, is precipitable by a. 

 mere dilution with pure water ; the precipitate is 

 white. Found plentifully in Saxony, Bohemia, 

 Sweden. 



a. Native Bismuth, of a filver white colour, in- 

 clining to reddifh. It's matrix is red jafper, pe- 

 froiilex, quartz, heavy fpar, and cobalt ores, 

 found crystallized in equilateral triangular lami- 

 nae ; indeterminate; in final 1 particles, foliated. 

 Separated from it's matrix by fimple fufion ; be- 

 ing itfelf eafily fufible. 



b. Native Calx, qr Oxyde of Bismuth; without 

 luftre ; friable, loofe, or conipa6t ; of an earthy 

 appearance; emitting no fulphureous fmell when 

 ignited; foluble in nitric acid; of a yellowifh 

 grey, greenilh, and ftraw yellow grey. 



c. Sulphurised Bismuth, or Sulphuret of Bif- 

 muth ; of a lead grey and biuifh grey colour ; 

 fometimes variegated ; amorphous, ftriated, foli- 

 ated, loofe and difperfed. jinaL Bifmuth 60. 

 Sulphur 4Q. Sage. 



d. Martial 



