47 



TAB. CXXV. 



URANIUM oxygenizatum. 

 Oxide of Uranite. 



Class 3. Metals. Order 1 . Homogeneous. 



Gen. 3. Uranium. Spec. 1. Oxygenizatum. 



Div. 1. Crystallized. 



Gen. Char. Dark brownish gray, dull, soft, brittle. 

 Spec. Grav. 6*44. Difficultly fusible. Soluble 

 in nitric acid. 



Spec. Char. Combined with a large portion of 

 oxygen. 



Syn. Uranitic ochre. Kirw. 2. 303. 



Grun Uranerz. Emmerl. 2. 584* 

 Urane oxide. Haiiy, 4. 283. 

 Uran mica. Jameson. 

 Uranglimmer. Werner. 



Cornwall has produced this substance but very sparingly. 

 It is mostly imported from Bohemia, Saska in the Bannat, 

 and Saxony, on a gangue composed of Pech-blende* in a 

 decomposing state, and was first discovered by Klaproth in 

 1789, It has been confounded by many with Muriate of 

 Copper, and with Green Mica. Ours was labelled as Muriate 



* A suboxide of Uraaite, 



