mineralogy. 
ill 
It dilTolves iii aqua-fortis, without im- 
parting to it any colour but to the aqua« 
regia it gives a red colour, and may be pre- 
cipitated out of both tliefe folutions with 
pure, water, into a white powder, which is 
called SpaniffO white. It is alfo precipitated 
by the acid of fea~falt, which lail unites 
with it, and makes the Vifmutum corneum. 
hi It amalgamates eafily with quickfilver. 
Other metals are fo far attenuated by tho 
bifmuth, when mixed with it, as to be 
ftralned or forced along with the quick- 
filver through (kins or leather. 
SECT. CCXXIL 
Bifmuth is found in the earths 
jL Native, Vifmutum nativum. 
This refembles a regulus of bifmuth, but 
confifts of fmaller fcales or plates^ 
1. 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 v/ith the 
copper ore, at Nyberget, in the parifti of 
Stora Skedwi, in the province of Dalarne. 
SECT. CCXXIII. 
B, in form of calx, Vifmutum c aid for me. 
I . Powdry or friable, Ochra vifmuti. 
This is of a whitifti yellow colour ; it is 
found in form of an efflorefcence, to the day, 
at Los, in the province of Helftn gland. 
it has been cuftomary to give the name 
of Flowers of Bifmuth to the pale red calx 
P 2 of 
