43 
kc.; the black lead ore of Werner, which appears 
to be merely a variety of the white lead ore.— 
With these are placed three substances from 
Leadhills, hitherto considered as carbonates, but 
which, according to analyses lately published, 
are, sulphato-carbonate, sulphato-tricarbonate, 
and cupreous sulphate of lead.—Phosphates of 
lead, which are divided by Werner into brown 
lead ore, and green lead ore. Among the speci¬ 
mens of the brown phosphate, the most remark¬ 
able are the large six-sided prisms from Huel- 
goet in Britany, kc. 
Case 43. Ores of lead continued :— green 
phosphate , massive, botryoidal, spicular, kc .; 
variously crystallized; of various shades of green, 
passing into greenish-white, into yellow and 
orange; with ferruginous quartz, straight-foliated 
heavy spar, &c. from Freiberg in the Brisgau, kc. 
— Arseniateoflead.—Molybdate of lead, or yellow 
lead ore; massive, lamelliform, and crystallized; 
on compact limestone, kc. chiefly from Bley- 
berg in Carinthia.—The specimens of chromate 
of lead , or red lead ore, deposited in this case, 
are particularly beautiful and instructive: the 
accompanying substances are green lead ore, 
and sometimes small greenish-brown crystals of 
a substance (Vauquelinite) which appears to be 
chromate of copper and lead: the gangue stone, 
in which the red lead occurs in the gold mines of 
Beresof, is a kind of micaceous rock mixed with 
particles 
SALOON. 
Nat. Hist. 
