XOMES X. XI. 



NOME X, BASALTIN, WITH STEATITE. 



[BACONITE, from Roger Bacon, the greatest 

 chemist of the middle ages ; flourished A. D. 

 1240.] 



This differs from Saussurite, or magnesian 

 basaltin, because the particles of steatite may 

 be partly distinguished by the naked eye. It 

 is found in the isle of Mull, and in some other 

 countries. 



HYPONOME I. 



With steatite disseminated. 



HYPONOME II. 



The same, with globules. 



NOME XI. SLATE, WITH SILEX. 

 [LULLITE, from Raymond Lully> A. D. 1300.] 



This kind has been described by Mr. Kir- 

 wan*. Sometimes the quartz seems the most 



* i. 381, 



