86 
SALOON. 
Nat. Hist. 
sisting of dark-red cinnabar (by far the more 
common variety), massive, crystallized, and in 
combination with various mineral substances ; 
the brighhred cinnabar (native vermilion, much 
esteemed by painters); the hepatic mercurial 
ore from Idria, compact and slaty; the former 
also with petrifactions (coral ore); muriate of 
mercury^ or corneous mercury, with native 
quicksilver, &c. 
Case 2 Q . This case contains (besides some 
additional specimens of gold and mercurial ‘ 
ores, among the latter cf which is the scarce 
cnative amalgam^ crystallized and globular) the 
ores of silver; between which and the ores of 
gold are placed the alloy called electrum, from 
Smeof in Siberia, and the auriferous silver 
from Kongsberg in Noiwvay, both being a 
mixture of gold and silver in different propor¬ 
tions. Other alloys of silver are the scarce 
antiraonial silver from V/olfach and Andreas- 
berg, and the arsenical silver from Guadalcanal 
in Andalusia.—'Among the numerous varieties 
of native silver^ may be particularized the va¬ 
rious imitative forms in which it occurs, such 
as tooth-shaped, wire-shaped, dendritical, moss- 
like, reticular, &c., many of which are ag¬ 
gregations of minute crystals.—Common sulphu- 
ret of silver^ or vitreous silver ; massive, crys¬ 
tallized, and in other external forms, among 
which are the laminar and capillary.—Brittle 
vitreous silver, of which some specimens are also 
deposited 
