from Altenberg, near Aix-la-Chapelle. Ill 



This mineral seems, therefore, to be a compound of some of 

 the stronger acids, such as phosphoric or boracic acid with zinc, 

 mixed with an earthy base and a little cadmium. 



Having thus established the existence of this rare and inter- 

 esting substance, as a new mineral species, I avail myself of the 

 privilege of giving it the name of HOPEITE, in compliment to our 

 learned Vice-President Dr HOPE, who, to many general claims 

 of having his name associated with mineralogical science, adds 

 one more particularly memorable in the annals of this Society, 

 namely, the discovery and examination of the New Earth of 

 Strontites. 



