39 



NEPHELINE GROUP. 



Nepheline. — Indistinct crystals with black Mica. 



Uo. With black Garnet {Melanite). 

 Loc, Vesuvius. 

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



With Sodalite and Felspar. 

 Loc, Vesuvius. 

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



Do. With Hornblende, Idocrase and Augite. 

 Loc, Vesuvius. 

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



Do. Small prism in Augitic lava. 



Log., Lobauer Berg, Bohemia. 



Sodalite. — In rhombic dodecahedrons. 

 Loc, Vesuvius. 

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



Do. Light green and massive. 

 Log., Vesuvius. 

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



Leucite. — Loose macled crystals. 

 Log., Vesuvius. 

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



Do. Fragments, eruption of 1794. 

 Log., Vesuvius. 

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



Do. Large crystals in lava. 

 Loc, Vesuvius. 

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



Do. Large macles. 



Loc, Vesuvius. 



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



725 j Do. Fine pink and grey crystals, eruption of 1847. 

 Loc, Vesuvius. 



