—- 
198 Scherer om'Isomorphism. ' 
as basic water, we obtain generally speaking, yr highly im- 
probable formule, or at least such ones as offer no reason for pre- 
ferring them to those already received. Ina few: instances only, 
which will be found below, the — that I have obtained, ap- 
pear to be worthy of notice. 
“8 Okenite. * 
Ca? ie may pie to 3Ca Si+(R) Siam, 
__ % Apaphyltite. 
K Si? +.8Ca Si-+ 16H may be converted are 4+2(R)9Si?. 
> _— — Kand Ca; ty psa on the contrary, the entire amount 
ater. ylia shot however, the cae 9 of 
La in ses ahttptae. to sobaed 18 per cent, whereas 
both Berzelius and Oeicany a, from 16 to 17 per 
cent. 
~ e 3. nah 
Na? Si?, 3A Si?+6H may be converted to 
* 
_3[Na Sil Sij+-2(R) Sli % 
The portion of the formula within the bracket ie th fo fortnuila of 
labradorite.” (Ryhere too contains only ¢ 
" A, Harmotome: 
Be si caine 098 may be sttrened a ai 
Ba? Si Sie bi) “Sis 28 Si 
bra Leah form it of sx am- 
<8 Bpisittite 
ef Si -saidiny ae may be converted to 
* 
s 
a 
* <ante Seri)» Siro Si}. 
The bracketed portion la of Weissite, The oxy- 
erp Tapio. x. BAThite, tebe on from Gustavus Rose’s analysis 
30: 4A Si: é19in - t 4°76 Na and H ; 2:12Ca; 
whereas, according t ‘to the forrhula proposed by me, it ought to be 
30 ‘44: 8°69 : 4-35 : 2-17, 
agreeing therefore very closely with the ratio deduced from the 
analysis. (R) in this formula comprises the entire soda and the 
whole of the water. 
