89^' Selenitic Intelligence. 
gives the following as the constituent parts of native liydrate of 
magnesia : Magnesia = 68.345 ; oxide of manganese 0.637 ; 
oxide of iron 0.116; water 30.902 = 100. 
31. Eudialite. — Amongst the many curious minerals disco- 
vered by Giesecke in West Greenland, one of the most interest- 
ing is that described under the name Eudialite, and which ap- 
pears to belong to the garnet groups It contaiins a considerable 
portion of zircon earth, — a substance which has hitherto been 
found only in the gem named Zircon ; and, what is remarkable 
in a mineral of this description, a large portion of alkali. The 
following is the analysis of Stromeyer : Silica 53.325 ; zircon- 
earth 11.102 ; lime 9*785. ; natron 13.822 ; oxide of iron 6.754 ; 
oxide of manganese 2.062 ; muriatic acid 1.034; water 1.801 
-99.685. 
32. Sodalite. — The sodalite of Greenland appears to belong 
to the scapolite tribe. 
33. Meionite. — Arfwedson, a pupil of Berzelius, published 
lately an analysis of meionite, according to which it appears to 
contain 21.40 parts of potash ; but Stromeyer has rendered it 
probable that the Swedish chemist had analysed a variety of leu- 
cite in place of meionite ; and he himself gives the following as 
the result of his analysis of meionite, which agrees nearly with 
that of Gmelin : Silica 40.531 ; alumina 32.726 ; lime 24.245 ; 
potash, with natron, 1.812 ; oxide of iron 0.182 = 99.496. 
- 34. Lievrite. — Although we already possess two analyses of 
the lievrite, one by Vauquelin, and the other by Descostils, yet 
as these differ from that lately published by Stromeyer, we shall 
here state the result of his analysis ; Silica 29.278 ; lime 13.779 ; 
alumina 0.614 ; black oxide of iron 52.542 ; oxide of manga- 
nese 1.587 ; water 1.268= 99.068. 
35. Fahlunite^ -The hard Fahlunite of Fahlun in Swe- 
den, the Steinheilite of Finland^ and the Dichroite of Bavaria 
and Greenland, appear to be varieties of the same mineral. All 
of them have been analysed by Stromeyer. In his lately pub- 
lished memoir, he gives the following as the constituent parts of 
the Dichroite of Greenland ; Silica = 49.170 ; alumina 33.106 ; 
magnesia 11.454; oxide of iron 4,338; oxide of manganese 
0.037 ; water and loss 1.204 = 99.309. 
