Miscellanies: 195 
beck und A. Henry.—Societies :—Proceedings of the Linnean Society ; 
Royal Society of Edinburgh; Entomological Society ; Botanical aes $ 
Zoological Society.—Mi: pciileaiaict: oe ‘ 
22. Analysis of Gielinite or Hydrolite ; by A. ConneELL, Esq., F R. 
S. E., &c. (Jameson’s Journal, No. 48, p. 360.)—Mr. Connell finds that 
17.67 grs. of this mineral from the County of Antrim, in Ireland, are 
composed exclusive of water of : 
ili 
Silica, - - - _ 8581 
Alumina, - Sua = 3.19 
Lime, - - = 1.084 
a, ~ . . .682 
Potash, - - - 069 a 
Oxide of iron, - - 02 
13.626 
To determine the qunatity of water, a portion of the crystals was igni- 
ted in a platinum crucible, and Shurcoal fire, when the loss of weight 
amounted to 21.66 per cent. We have thus, in 100 parts of the mineral, 
: Oxygen contained. 
Silica, = - 48.56 : Ss . 
Alumina, -— - ~ 18.05 8.430 3 
Lime, ae 6.13 1.721 
Soda, - - 3.85 984 | 
. otash, : ‘ 39 = 06 
Oxide of i iron, . mS 
—, Water, - ~ « 21.66 19.253 7 
98.75 
Tt safiictently appears, both from the satelyile of Vauquelin* and from 
that here detailed, that this mineral is nearly allied to chabasite, in a 
- chemical point of view,°as according to Mr. Haidinger,? it is crystallo- 
Braphically ; and it is not impossible that if analysis applicable to differ- 
mula for chabasite might be found to embrace gmelinite. It does not, 
however, apply to the nie —- and still less to — Vauquelin. 
¢ 
eh: Four peace, a — Montecchio Maggiore. Castel. 
Silica, - . : 50.00 ~  §0.00 
Alumina, - - 20.00-" 20.00 
Lime, - - - 4.50 4.25 
Soda, . pect GO 4.25 
Water, - - - . 21.00 21.00 
100.00 98.50 
+ Mohs’s Mineralony. fig, 195. 
