MINERALOGICAL NOTES : NO. V. ANDERSON. 



419 



For analysis material was selected from several specimens 

 carrying analcite in druses and cavities. 



I. — Ben Lomond, N. S. Wales ; taken for water -1492 gram, 

 general -3039 gram. 



II.— Table Mt., Colorado." 



III.— Calculated for NaoO. Al.O,. 4SiO,. 2HoO. 



MESOLITE. 



Ben Lomond, New South Wales, 



The slender ci ystals are too minute for optical determination ; 

 extinction is sensibly straight. The mineral fuses to an opaque 

 white bead giving the sodium flame. For analysis a vugh lined 

 with a downy covering of interlacing acicular crystals was de- 

 nuded, yielding, -5509 gram, of apparently pure material. Water 

 was determined by ignition. 



.'■^ Hillebrand— Z-00. cit., p. 29. 



