MINERALOGY. 
171 
SECT. CLXVIII. 
Silver is found. 
Native or pure, Argentum fur urn nathtm. 
Native fiiver moft generally is nearly of 
fixteen carats ftandard. 
1. Thin fuperficial plated or leaved filver. 
2. It is alfo found in form. 
Of fnaggs, and coarfe fibres. 
b, Of fine fibres. Capillary filver. 
c, Arborefcent. From Potofi in America, 
and Kongfberg in Norway. 
d, Crifhalline, or figured. This is very 
fcarce to be met with : it has diftincl: 
figures, with firming furfaces; it is, 
however, fometimes found at Kongfberg. 
The filver from America is faid to be 
found for the mofi: part native ; fo it is 
likewife at Kongfberg in Norway, but 
it is not commonly fo in the other Eu- 
ropean mines. In Sweden it is found 
native in a very fmall quantity, in the 
mines of Salberg in Wefbmanland, 
of Lofafen in Dalarne, of Hevafiwik 
and Sladkierr in the province of Dal, 
of Sunnerfkog in the province of Smo- 
land, and in the Ifiand Utoen in the 
Ltike Malaren. It was once found in 
pretty large lumps in a vein of clay in 
one of the iron mines at Norrnark, in 
the province of Vfermeland. It was 
there mixed with nickel, which w’as 
partly decayed pr withered *, and under 
this ciixiimflance it formed the com- 
pound ore called the Stercus Anfcrinum^ 
or Goole-dung Ore. At this place the 
argilla- 
