39 
the specimens of compact malachite, the most 
beautiful and characteristic are those from the 
Gumashevsk and Turja mines in the Ural moun¬ 
tains.—In this case is also placed the copper- 
green of Werner, a substance often confounded 
with common green carbonates of copper, but 
which contains much silica : a variety of it is the 
iron shot copper green.— Dioptase, a very scarce 
substance from Siberia, also called emerald cop¬ 
per, on account of its pure green colour.— Phos¬ 
phate of copper from Rheinbreitenbach, in Nas¬ 
sau, &c.— Muriate of copper, crystallized and lami¬ 
nar : to which also belongs what is called green 
sand of Peru, or atacamite, from being found in 
the desart of Atacama, between Chili and Peru, 
as sand of a small river. The rest of this case is 
occupied by the principal varieties of the diffe¬ 
rent arseniates of copper, namely, the foliated 
arseniate or copper mica, the lenticular arseniate, 
and the oiive ore of Werner, which are formed 
into five distinct species by some mineralogists ; 
also the earthy arseniate, or pharmacochalcite 
of some authors;—to which are added specimens 
of the martial arseniate of copper . 
(Case 36.; Contains ores of iron, viz. native 
iion, arsenical pyrites (also called arsenical iron, 
and mispiekle, a variety of which is argentife¬ 
rous,) and common iron pyrites, with its various 
crystalline modifications derived from the cube, 
which is either smooth or striated. The most in¬ 
teresting 
SALOON’. 
Nat. Hist. 
