38 
SALOON, the numerous copper ores : among the specimens 
Nat. Hist, of native coppev (which, like the native silver, 
presents a great variety of forms besides the crys¬ 
tallized, such as dendritic, filiform, &c.) maybe 
specified the mass from Hudson’s Bay, found by 
Mr. Hearne, and described by him in his journal. 
Case 32. Ores of copper continued : common 
sulphur et of copper, or vitreous copper, variously 
crystallized, foliated, compact, &c. To this are 
also commonly referred the oblong, scaly, second¬ 
ary fossils, known by the name of Franhenberg 
corn ears^ which occur in the bituminous marl- 
slate of Frankenberg in Hessia, and are princi¬ 
pally composed of vitreous and grey copper.— 
The variegated copper ore, easily known by the 
reddish colour of its fractural planes, massive 
and foliated.—The grey copper ore (fahl ore), 
crystallized, massive, and disseminated in various 
substances. 
Case 33. Ores of copper continued : yellovo 
copper or copper pyrites^ the most common of all 
the ores of this metal: among these, is also the 
pale yellow, fine-grained variety, called hemati- 
tiform and blistered copper pyrites.— Seleniuret 
of copper and silver^ called eukairite^ in foliated 
carbonate of lime fromSkrickerum.in Smolandia, 
Sweden.— Red or ruby copper ore^ compact, fo¬ 
liated, and fibrous; one of the more remarkable 
is the bright-red capillary variety from Rhein- 
breitenbach, in Nassau. To these are added a 
few specimens of what is called tile-red copper, 
or 
