38 
SALOON. 
Nat. Hist. 
lysed;—the iimriaie of silver, called also corneous 
silver and horn ore, of various colours, amorphous, 
botiyoidal, in laminse, and crystallized in minute 
cubes and octohedrons;—the very scarce carho- 
nate of silver, also called grey silver ore, from Alt- 
Wolfach in Suabia, &c.—In this case begin the nu¬ 
merous copper ores : among the specimens of na¬ 
tive copper (which, like the native silver, presents 
a great variety of forms, besides the crystallized, 
such as dendritic, filiform, &c.) may be specified the 
mass from Hudson’s Bay, found by Mr. Hearne 
and described by him in his journal. 
i^Case 32.) Ores of copper continued; common 
sidphiiret of copper or vitreous copper, variously 
crystallized, foliated, compact, &c. To this are also 
commonly referred the oblong, scaly, secondary fos¬ 
sils, known by the name of Frankenherg corn ears, 
which occur in the bituminous marl-slate of Fran- 
kenberg in Hessia, and are principally composed of 
vitreous and grey copper.—^The variegated copper 
ore, easily known by the reddish colour of its frac¬ 
tured planes, massive and foliated.—^The-^v^^/ cop¬ 
per ore (fahl ore),-crystallized, massive, and disse¬ 
minated in various substances. 
33.) Ores of copper continued: yelloxu 
copper or copper jnjrites, the most common of all 
the ores of this metal: among these is also the pale 
yellow, fine grained variety, called hematitiform 
and blistered copper pyrites.— Red or ruby copper 
ore. 
