MINERALS. 125 



DIVISION 4- 

 S action 4 - Silicates, continued. 



lit Serie*, - Silicates combined with Sulphides, Chlorides, &c. 

 ' No specimens. 



2nd Series, - Silicates combined icith I? orates. 



Tourmaline. Ittnn, Switzerland. 

 with Granite. 



and Quartz. 



in Mica Scliist. Ntwije, Umfuli Valley, Zululand. 



Orthose, Albite &c. in Granite. St. Ilario, Elba. 



Quartz and Orthose. 



Various Tourmalines in tube, along with Beryls. Elba. 

 Black Tourmaline. Madagascar. 

 Forcioni, Elba. 



with Ilvaite. Campo, Elba. 



with granitic Porphyry. loura, Elba. 



Axinite. St. Gotthard, Switzerland. 



Datolite, Silico-borate of Lime, with Scolecite. Casarza, 



Liyurui, Italy, 

 Datolite, with Scolecite and Calcite. 



3nd Series, - Silicates combined with Sulphates. 



Lapis-lazuli. Monte Somma, Italy. 



Pyrenees. 



Hauynite, with Leucite. Fosso del Tavolato, Italy. 



