TAB. XCIV. 



CUPRUM carbonatum, 

 Carbonate of Copper. 



Class 3. Metals. Order I. Homogeneous. 



Gen. Q. Copper. Spec. 3 . Carbonate. 



Div. 2. Imitative. 



I he present specimen is a very rare and curious modifi- 

 cation of carbonate of copper. 



At present I know of only two specimens ; one belonging 

 to P. Rashleigh, Esq., and the other in the possession of 

 Mr. R. Phillips. 



The upper figure , which belongs to the former gentleman, 

 is, as he observes, remarkable for being on the broken end 

 of a large milky rock crystal. The other stands on the 

 crystallized ends of the rock crystal, and is a much larger 

 specimen j part of it only being figured. 



This mineral was first considered as an arseniate of 

 copper, but we have every reason \o ^ suppose it to be a 

 carbonate. 



The spiculoe are curiously disposed like radii round the 

 edges of a thickish lenticular nucleus. 



Both specimens are accompanied by a few crystals of 

 each variety of arseniate of copper, figured at tab, 31, 



