59 



AL UMINA GR UP— Continued. 



Kaolin. {Carclazyte). — Decomposed granite, containing 

 kaolin. 



Loc, Treviscoe, St. Stephens. 



Obs., presented by Mr. J. H. Collins. 



Do. {China Clay). — Washed specimen, as sold. 

 Loc, Huel Burn, St. Stephens. 

 Obs.., presented by Mr. J. H. ColHns. 



Do. [Lithomarge.) — Banded, pink and white. 

 Log., Dolcoath. 

 Obs., presented by Mr. J. H. Collins. 



Gramenite. — Grass-green, massive. 



Log., Smallacombe, Devon. 



Obs., presented by Mr. J. H. ColHns. 



Erinite. — Dark-greenish spherules. 

 Log., BalHntoy, Antrim. 

 Obs., presented by Capt. James. 



KiLLiNiTE. — Greenish particles, in granite. 

 Log., Killiney, Dublin. 



Finite. — Detached crystals. 

 Loc, Crowan. 



Do. Black crystals in Elvan. 

 Log., Crowan? 



ALUMINATE SECTION. 

 SPINEL GROUP. 



Spinel. — Black crystals in green Augite. 

 Log., Vesuvius. 

 Obs., presented by Mr. G. C. Fox. 



Do. Black crystals in green Augite. 

 Log., Vesuvius. 

 Obs., presented by Mr. G. C. Fox, 



