so 
saloon, colouring matter between the laminae of straight 
Nat7h~ist. foliated crystallized barytes;—specimens of the 
native oxide of arsenic , shewing the octohedral 
form of its primitive crystals; near which are 
placed, on account of their affinity to the other 
ores of arsenic, the varieties of pharmacolite 
which is an arseniate of lime and might there¬ 
fore claim a place among the calcareous salts. 
(Case 48.) The contents of this case are 
The ores of nickel, among which may be parti¬ 
cularized the native nickel from Saxony, which 
was formerly classed with the ores of iron, under 
the denomination of capillary pyrites;—the arse* 
meal nickel , called copper nickel;— nickel ochre , 
an oxide of this metal, to which the chrysoprase, 
and the other substances found along with it 
(the pimelite and razumofskine) owe their green 
colour.—Ores of bismuth: native bismuth , mas¬ 
sive, disseminated and dendritic in jasper; to 
which is added a specimen exhibiting the arti¬ 
ficial crystallization of the same, produced by 
sudden cooling of the melted metal;— sulphuret of 
bismuth , the bismuth glance of Werner, with 
which is placed the Siberian needle ore of the 
same mineralogist, being a triple sulphuret of 
bismuth, lead, and copper.—Ores of Uran: the 
protoxide of uranium, called pitch ore , massive, 
pure and with adhering ochre of the same metal; 
—the oxide called uran mica or micaceous uran, 
on account of its foliaceous and thin laminar 
crystals 
