46 
SALOON. 
Nat. Hist. 
green and blue carbonates of copper; the fine light 
blue variety coloured by copper, &c. ;—the oJack 
lead ore of Werner, which appears to be merely a 
variety of the white lead ore.—Phosphates of lead, 
which are divided by ^Yerner into brown lead ore 
and green lead ore. Among the specimens of the 
hrovjii phosphate^ the most remarkable are the large 
sixsided prisms from Huelgoet in Britany, &c. 
{^Case 43.) Ores of lead continued:— green 
phosphate^ massive, botryoidal, spicular, &c.; vari¬ 
ously crystallized ; of v^irious shades of green, pass¬ 
ing into greenish white, into yellow and orange; 
ivith ferruginous, quartz, straight foliated barytes, 
&c. from Scotland, Freiberg in the Brisgau, &c. ; 
—Molybdate of lead, or yellow lead ore; masswe, 
lamelliform, and crystallized ; on compact lime¬ 
stone, &c. chiefly from Bleyberg in Carinthia.— 
The specimens of chromate of lead, or red lead 
ore, deposited in this case, are particularly beauti¬ 
ful and instructive ; the accompanying substances 
are green lead ore, and sometimes small greenish 
brown crystals of a substance, the component parts 
of which are the oxides of lead and of chrome: 
the gangue stone, in which the red lead occurs 
in the gold mines of Beresof, is a kind of mica¬ 
ceous rock mixed with particles of quartz and 
brown iron stone.— Mvrio-carhonate of lead, or 
horn lead, the crystallized varieties of which have 
hitherto been observed in Derbyshire ouly. [An 
interesting 
