TAB. CCCII. 



CUPRUM hjperoxygenizatum. 

 Peroxide or Hydrate of Copper. 



Div. 3. Amorphous. 



As it is interesting to Geologists to see what substances 

 come together, I figure this variety of Copper Ore mingled 

 with the black Oxide of Manganese in the same bed or 

 part of the vein. It is extremely curious to find it so clean 

 and bright among the loosely cracking, almost powdery 

 Manganese which is so liable to soil any thing near it. 

 Nature, here, however, shows us a striking example of 

 the inseparable connexion between the particles of certain 

 substances, so important to defend us from that chaos 

 which might otherwise ensue. 



This is a variety of the same Copper Ore as tabs. 279 and 

 280, containing much Silex, and, having most of the different 

 appearances, as to colour, from nearly white to yellower 

 and blueish green, probably depending on the quantity of 

 water it holds. The dark green parts are Carbonate of 

 Copper. 



j; 2 



