66 CATALOGUE OF MINERALS; 
of the Great Northern P.C., Herberton, is a dyke, according to 
Mr. Jack, much metamorphosed, consisting of a dark green matrix 
of hornblende with quartz granules and chlorite. 
Hornblende occurs with quartz at Springsure, and occasional 
crystals with olivine in the basalt of the Endeavour River. 
AuGITE—Comp. silicate of lime, magnesia, iron, and alumina. 
This is another rock-forming mineral, but usually in minute 
fragments. It occurs with olivine in the spherical bombs of basalt 
at Gate’s Look-out, and in the basalt of various other parts. 
BrryL—Comp. silicate of alumina and glucina. 
Beryls are said to have been found in the drift of Stanthorpe. 
OLIVINE—Comp. silicate of magnesia and iron. 
Olivine is found in the basalt at Gatton ; the Endeavour River ; 
and at Iron Pot Creek, Burnett district; also with augite in 
spherical bombs of basaltic rock at Gate’s Look-out (Jack). 
GARNET—Comp. silicate of alumina and iron, with a little 
manganese. 
Almandine garnets have been found by Mr. R. L. Jack ina 
valley west of Mount Eurie, Cloncurry district, and in the lode of 
the Mountain Home copper mine, in the same district, with 
malachite, ferruginous red oxide of copper, and asbolane. The 
green chlorite rock of Boulton’s Folly claim, Watsonville, contains 
garnets with cassiterite. 
Z1RCON—Comp. silicate of zirconia. 
I do not know that zircon has be found 7 s¢tu at any locality, 
but the stream-tin drift of Stanthorpe frequently contained the 
mineral ; it has also, I believe, been found in a similar manner at 
Herberton. Zircon has also been found with titaniferous iron 
and magnetite in creeks forming the heads of the Boyne and 
Stuart Rivers, Burnett district. 
LIEVRITE—Compp. chiefly silicate of iron and lime. 
Lievrite occurs in geodes in basalt between Willams’ Station 
and Brannigan’s on the Endeavour River (Jack). 
MuscovirE—Comp. chiefly silicate of alumina and potash, often 
with iron, magnesia, &c. 
Common mica is a constituent of all such rocks as gneiss, 
granite, mica schist, and others of allied types. At Stanthorpe 
the mica is invariably white when associated with cassiterite 
