OF TIN, COBALT AND NICKEL. 
75 
Ores of Tin. 
The production of Tin from the continental mines has for centuries 
past been inconsiderable in comparison with that from Cornwall and 
from Banca and the Straits.” Many of its localities are, however, 
highly interesting, and it is observable that the veins and ‘‘stockworks” 
in which the ore is found, are uniformly in or near granitic rocks in 
Brittany, North-western Spain, Saxony, and Bohemia. 
Shelf IV. 
435. Cassiterite, or Tin Stone 
{Binoxide of Tm). 
Province of Poiitevcdra, Galicia, 
Spain. 
436 and 436a. Cassiterite. 
Spain. 
437. Cassiterite, macled or 
twin crj'stal. 
Brittany. 
438 and 439. Crystals of Cassi¬ 
terite. 
Brittany. 
440 and 441. Cassiterite, co¬ 
lumnar crystals of unusual size. 
Brittany. 
442. Cassiterite. 
Pointe de Piriac, Loire Inferieure, 
1813. 
443. Cassiterite. 
Sauherg, near Geyei, Saxony. 
444. Cassiterite. 
Bohemia. 
445. Cassiterite. 
Zinnwald, Bohemia. 
446. Cassiterite, crystallized. 
Zinnwald. 
447. Cassiterite, crystallized. 
Schlaggenwald, Bohemia. 
448. Cassiterite, crystallized 
(variety of black tin). 
Graupen, Bohemia. 
449. and 450. Cassiterite. 
Mines of Ononsk, Baikal, Russia. 
Presented by the Imperial Mining In¬ 
stitute of Russia. 
451. Cassiterite, in Quartz 
vein. 
Arksut-fiord, Greenland. 
452. Cassiterite, a vein in 
compact Mica-slate. 
Jackson, New Hampshire. 
452a. Botryoidal Oxide of Tin. 
Brazil. 
Ores of Wolframium, Cobalt, and Nickel. 
The ores of these metals seldom occur in quantity, and are for the 
most part subsidiary to other substances, and associated with the ores 
of Tin, of Copper, and of Silver. Wolfram, although experimentally 
applied to several purposes, is not yet in demand ; but the important 
applications of Cobalt and Nickel render their ores a valuable object of 
research in Saxony, Thuringia, Norway, &c. 
Shelf V. 
453. Wolfram {^Tungstate of 
Iron). 
Zinnwald, Bohemia. 
454. Wolfram, large pris¬ 
matic crystal. 
Zinnwald. 
454a. ScHEELiTE ( Tungstate of 
TAme), crystallized. 
Traversella, Piedmont. 
455. Erythrine, or Cobalt 
Bloom {Hydrated Arseniate of 
Cobalt). 
Schneeherg, Saxony. 
456. Bed Cobalt Ochre. 
Schneeherg, Saxony. 
457. Red earthy Cobalt. 
Schneeherg. 
