MINERALOGY. 2ii 



g. It diflblves in aqua-fortis, without inv 

 parting to it any colour ; but to the aqua- 

 regia it gives a red colour, and may be pre- 

 cipitated out of both thefe lblutions with 

 pure water, into a white powder, which is 

 called Spanift) zvbite. It is alfo precipitated 

 by the acid of fea-falt, which laft unites 

 with it, and makes the Vifmtitim corneum. 



b. It amalgamates eafily with quickfilver. 

 Other metals are fo far attenuated by the 

 bifmuth, when mifed with it, as to be 

 {trained or forced along with the quick* 

 filver through (kins or leather. 



SECT. CCXXII. 



Bifmuth is found in the earth. 

 A. Native, Vifmutum nativum. 



This refembles a regulus of bifmuth, but 



confiib of fmaller fcales or plates. 



i. Superficial, or in crufts. 



2. Solid, and compofed of fmall cubes* 



This is found in, and with, the cobalt 

 ore, at Schneeberg in Saxony, and other 

 foreign places : Likewife along with the 

 copper ore, at Nyberget, in the parifh of 

 Stora Skedwi, in the province of Dalarne. 



SECT. CCXXIIL 



#. In form of calx, VifmUtufn calciforme* 

 i . Powdry or friable, Ochra vifmuti. 



This is of a v/hitifh yellow colour ; it is 

 found in form of an effiorefcence, to the day, 

 at Los, in the province of Helfingland. 



It has been cuftomary to give the name 

 of Flowers of Bifmuth to the pale rtd calx 



P 2 Of 



