69 



TAB. CCCXL. 



COBALTUM oxygenatum. 

 Oxide of Cobalt. 



Class 3. Metals. Order 1. 



Gen. 7. Cobalt. Spec. 1 . Oxide. 



Div. 1. Amorphous. 



Syn. Black Cobalt Ore. JOrw. 2. 275. 



Native Oxide of Cobalt. Bab. 232. 

 Schwarzer-erdkobolt. Emmerl. 2. 438* 

 Cobalt oxyde noir. Haiiy, 4. 214. 



On the estate of Sir John Thomas Stanley, Bart., at AI- 

 derney Edge in Cheshire, was found this variety and mix- 

 ture of Cobalt. The substance being now so very scarce 

 and valuable, the knowledge of this variety is of the more 

 consequence, as it may lead to the finding this Mineral on 

 some unexpected occasions. The bloom of Cobalt having 

 the crimson cast, is apt to betray it, and I hope, for the 

 owner's sake, this may become more profitable than hitherto, 

 and lead to the acquisition of the more perfect substance. 

 This is so mixed with Sand, Oxide of Copper, Manganese, 

 &c, that it is of but little value as an Ore of Cobalt. 



