48 
SALOON. 
Nat. Hist. 
feld, Allemont, &c. Between these and the re¬ 
maining metallic substances in the adjoining 
table-case are deposited the ores of arsenic ; na- 
five arsenic (formerly called testaceous cobalt) in 
reniform and botryoidal shapes, from Andreas- 
berg, &c.;—splendid and instructive specimens 
of the sulphurets of this metal, viz, the yellow 
orpiment, massive, and in separable, striated, 
transparent laminae ; and the red orpiment or re^ 
algay\ perfectly crystallized and massive, and also 
(in the large specimen in the centre) as colour¬ 
ing matter between the laminae of crystallized 
straight-foliated heavyspar specimens of the 
native oocide of arsenic^ showing the octahedral 
form of its primitive crystals. 
Case 48. The contents of this case are :— 
The ores of nickel, among which may be parti¬ 
cularized the native nickel^vom Saxony, which was 
formerly classed with the ores of iron, under the 
denomination of capillary pyrites;—the arsenical 
nickel^ called copper nickel; nickel oclire^ which 
is no oxide, but an arseniate of nickel.—Ores of 
bismuth : native bismuth^ massive, disseminated 
and dendritic in jasper; to which is added a speci¬ 
men exhibiting the artificial crystallization of the 
same, produced by sudden cooling of the melted 
metal;— sulphuret of bismuth^ the bismuth glance 
of Werner, with which isplaced the Siberian needle 
ore of the same mineralogist, being a triple sul- 
phuret of bismuth, lead, and copper.—Ores of 
uran; 
