46 
SALOON, green and blue carbonates of copper; the fine light 
Nat. Hist, blue Variety Coloured by copper, &c.;—the black 
lead ore of Werner, which appears to be merely a 
variety of the white lead ore.—Phosphates of lead, 
which are divided by Werner into brown lead ore 
and green lead ore. Among the specimens of the 
brown 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 various shades of green, pass¬ 
ing into greenish white, into yellow and orange; 
with ferruginous quartz, straight foliated bar}’tes, 
&c. from Scotland, Freiberg in the Brisgau, &c.; 
—Molybdate of lead^ or yellow lead ore; massive, 
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.— Miirio-carbonate of lead, or 
horn lead, the crystallized varieties of which have 
hitherto been observed in Derbyshire only. [An 
interesting 
