IIo ON THE MINERAL SCOLECITE ; 
The following are samples of rocks [exhibited at the meeting, 
Ep.], whose faces are covered with the hydrated silicate, probably 
Scolecite :— 
No. 1.—From the Mary Claim (5 miles west of Queen Block 
Extended), occurring at a depth of 300 feet. A complete analysis 
of the mineral in question found under these circumstances 
gives :— 
Swe, < ; : : : 49.04 
ALGO, : : c : 26.64 
Ca@Ores , 4 : F 12.24 
H, O (by ignition) ; P 13.30 
Fe, O; : : , - traces 
101.22 
This analysis differs from that derived from the mineral obtained 
from Queen Block Extended. As the per cent. of SiO, is higher 
and the remaining constituents all lower than the previous sample, 
it may be mixed with a little quartz. The sample was obtained 
by floating off the mineral with Sonstadt’s Sol. (Sp. gr. 2.6). 
The quantity taken was only 15.43 grs. 
No. 2.—From the North Australian, occurring at a depth of 
280 feet. Analysis incomplete. 
No. 3.—From the Rainbow Claim, and derived from deep 
ground, but exact depth not known yet. The Scolecite occurring 
in this gave on analysis :— 
SUOL > : ‘ : é 47.0 
Hi OF *: F : : : ae7 
No. 4.—From the Mexican Claim, the mineral derived from 
which samples gave :— 
SEO; : : : : 47.24 
Jl (O)rs ‘ ’ : ; 26.64 
Cal@Or sy - : : : : 12.95 
HevOn se : - / ‘ 14.20 
Fe, O; - ; : : ; traces. 
Calcite abounds in all the claims mentioned as the source 
of these illustrative examples, and the clains are all situated, 
moreover, in gold-bearing reefs. 
