40 
saloon. Nassau.—Muriate of copper, crystallized and 
Nat. Hist, laminar; 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 different arseniates of copper, namely, 
the foliated arseniate or copper mica, the lenti¬ 
cular arseniate, and the olive ore of Werner, 
which are formed into five distinct species by 
the Comte de Bournon ; also the earthy arse¬ 
niate, or pharmacochalcite of some authors ;— 
to which are added specimens of the martial 
arseniate of copper, 
(Cb.se 36.) Contains ores of iron, viz. na¬ 
tive iron, arsenical pyrites (also called arsenical 
iron, and mispickle, a variety of which is argenti¬ 
ferous), and common iron pyrites, with its va¬ 
rious crystalline modifications derived from the 
cube, which is either smooth or striated.—The 
most interesting specimens deposited in this case 
are those of native iron, and the stones called 
aerolites, because they have fallen from the at¬ 
mosphere, or meteoric stones, because they are 
by some supposed to be depositions from meteors. 
The specimens of the former are,—native iron 
from Gross-kamsdorf, in Saxony ;—two small 
polished pieces of the mass found in Southern 
Africa, 
