47 
arseniferous;— sulphuretoj'antimony , or grey anti- saloon. 
mony (the most common ore of this metal), oc- Nat. Hist. 
curs compact, foliated, radiated, and plumose: 
the more remarkable among these are the speci¬ 
mens of crystallized radiated antimony in fine 
groups, especially from Transylvania; radiated 
grey antimony with barytes, realgar, &c.; the 
plumose grey antimony, some varieties of which, 
appearing like delicate wool or down, display a 
fine iridescent blue, yellow and red tarnish; red 
antimony , mostly in fine capillary crystals, from 
Braunsdorf in Saxony, and a variety of the same, 
called tinder ore, from the Hartz;— white anti¬ 
mony , an oxide, formerly considered as a muriate, 
of this metal, crystallized, on galena, &c.—spe¬ 
cimens of antimonial ochre on native and grey an¬ 
timony, &c. 
Cases 47, and part of 48, contain the ores of 
cobalt and arsenic. The crystals of glantz-cobalt, 
which has been frequently confounded with white 
cobalt, are mostly from Sweden ;—a suite of 
specimens of white cobalt , exhibiting the princi¬ 
pal modifications of crystallized and irregular 
shapes;— grey cobalt , principally from Wittichen 
in Wurtemberg;—some specimens of oxides of 
this metal, viz. the black and the brown or yel¬ 
low cobalt ochre , the latter of which contains 
iron;—various specimens of the red cobalt ore , or 
arseniate,comprising the earthy (cobalt crust) and 
the radiated (cobalt bloom) varieties, from Saal- 
feld. 
