IS 14.] 



Constituents of Atote. 



193 



{To be continued.) 



Article V. 



Description and Analysis of the Mineral called Hauyne. By 

 Leopold Gmelin, M.D.* 



This mineral has been hitherto found only in three places, all of 

 them considered as volcanic ; namely, the neighbourhood of Rome, 

 Naples, Andernach, and in Auvergne. It was first observed near 

 Rome by Gismondi, who gave it the name of latialile. Neergaard 

 afterwards described it, and gave it the name of Hauyne in honour 

 of the Abbe Haiiy, to whom mineralogy lies under so many obli- 

 gations. Haiiy has given a short account of it, with an imperfect 

 analysis by Vauquelin, in his Tableau Comparatif. This analysis 

 was as follows : — 



Silica , . 30-0 



Alumina 15-0 



Sulphate of lime 20-5 



Lime 5>0 



Potash 1 1 -0 



Oxide of iron 1-0 



Sulphureted hydrogen ~) 



Loss 3 «7' 5 



100-0 

 • Abstracted from hi- ih^kis printed at Heidelberg, in 1S14. 



Vol. IV. N° HI. N 



