78 



collection of clusters variously grouped, the clusters formed 

 of crystals diverging from a centre, with the faces of the 

 pyramid only exposed. It is on an irregular gangue of white 

 Quartz with some blackish lumps of gray Sulphuret of 

 Copper, and a few rectangular plates, perhaps Uranite. 

 The left hand bottom figure represents a specimen with 

 more distinct crystals looking like spiculse, scattered in 

 the hollows of an ochraceous gangue. These sometimes 

 expose one, and at others both ends : see the lower figure. 

 These crystals are mostly of a light shining sage green. 



Analysis by Mr. Chenevix : 



Silica . . . 



03 



Arsenic Acid . . 



33-5 



Oxide of Iron . . 



27*5 



Oxide of Copper . 



22-5 



Water . . . . 



12 



