7° CATALOGUE OF MINERALS ; 
Creek, some of the specimens shewn him from the locality being 
coated with green carbonate of copper. Hon. A. C. Gregory has 
also noticed the occurrence of copper lodes in serpentine at 
Mount Coora, in the Burnett district. 
Mr. Daintree has further remarked that the ridges of serpentine 
round Mount Wheeler pass into diallage and gabbro, schillerspar 
also being not unfrequently met with. 
In the Tinaroo district serpentine is of not uncommon occur- 
rence, as in Cottais’ claim, where “‘the porphyry country is pierced 
by a dyke (underlying to the east) of fine grained amphibolic rock 
containing irregular quartz blebs, and with all its joint planes 
covered with fibrous serpentine and sprangled with thin flakes of 
native copper” (Jack); in the Soggaorth, where a vein of ser- 
pentinous rock and quartz runs E.S.E. through porphyry and 
contains a little tin; and in the Good Friday, where the ore 
sometimes consists of aggregates of minute crystals and is associated 
with brecciform masses of steatite and noble serpentine. 
Asbestos is found occurring in the serpentinous rock of Mount 
Wheeler, 18 miles from Rockhampton, and also in the Kilkivan 
district. 
KaoLin—Comp. hydrous silicate of alumina. 
Kaolin is essentially a decomposition product, arising from 
the decomposition of aluminous minerals, and from felspar in 
particular ; hence where cassiterite has had granite, as at Stan- 
thorpe, or orthoclase felspar, as in some of the claims on 
Herberton, for its matrix, it readily follows that kaolin is found 
either in the tin-drift or surrounding the cassiterite as its matrix ; 
the first of these occurrences was only noticeable in the tin-drift 
of Stanthorpe, and the second in the Tornado and Cosmopolitan 
claims, Herberton 
Mr. R. L. Jack mentions a vertical dyke of kaolin, mixed with 
fine siliceous granules, passing into pure kaolin in the western 
end of the upper cutting of the Mount Morgan mine; and Mr. 
Enright tells me of a 4-inch vein of kaolin passing from surface to 
water-level alongside a quartz in his Marching-through-Georgia 
claim on the Palmer goldfield. I have noticed very pure kaolin 
in Callan’s Knob on the property of the Mount Morgan Gold 
Mining Company. 
PENNINITE—Comp. hydrous silicate of magnesia and alumina. 
In his report on the Tinaroo district, Mr. R. L. Jack, writing of 
the Wheal Vohr mine, says “the rock which forms the matrix of 
