46 
SALOON. 
Nat. Hist. 
mens of the two former species include various | c 
crystalline and other forms, among which are the I 1 
pseudomorphous crystals of carbonate of zinc, : 
derived from modifications of calcareous spar. 
(Case 45.) Ores of tin, of which we have the ] 
sulphuret of tin, or tin pyrites, and the oxides, 
which are divided into common tin stone, and 
wood tin :— tin pyrites, hitherto only found in 
Cornwall, nearly pure, mixed with copper py¬ 
rites, &c.;—among the specimens of common tin 
stone are, the regular and macled crystals, the 
pebble-like and granular tin stone (shoad tin, 
stream tin, grain tin, &c.), and the greyish-white 
crystals, resembling scheel ore, or tunsgate of 
lime; the tin stone from Finbo, in Sweden, 
which contains oxide of tantalum.—The ores of i 
tungsten, which generally accompany those of 
tin, are— wolfram (scheelin ferrugineux Hauy ), 
crystallized and massive, from Bohemia, &c. and 
the tungstate of lime , scheel ore (scheelin calcaire 
Haily), among the crystallized specimens of 
which is the primitive acute octahedron from 
Allemont in Dauphine.—In this case are also 
placed the, specimens of molybdena, or sulphuret 
of molybdenum , which should not be confounded 
with graphite; the yellow powder on feldspar, 
from Westmania in Sweden, \s oxide of molyb¬ 
denum. 
(Case 46.) Part of this case is occupied by the 
ores of titanium, viz. the oxides, called titanite , 
brown-ore , brunon , (sphene, and titane siliceo-cal- 
caire 
