Simpson — Contributions to Mineralogy of JV.A. 
63 
Loc. 818. Close to the main valley the rock is massive granite, 
which becomes more gneissic as one goes east until at the kyanite 
locality (about U miles east of Loc. 818) the rock is highly foliated 
and micaceous. Occasional dykes of epidiorite and veins of quartz 
are seen running north, parallel to the foliation of the rock. 
Where the kyanite is found the outcrops are considerably obscur- 
ed by soil, but the observations made show that all the mineral 
occurs in a large quartz vein probably forming a contact between 
gneiss and somewhat platy epidiorite. It is apparently confined 
to quite a small section of the vein, as specimens could only be 
found over an area of a few square yards. Within this area, 
however, magnificent specimens can be obtained of white quartz 
thickly studded with large tabular crystals of kyanite. At the 
surface this is grey blue in colour and often rather heavily iron- 
stained. Where protected, however, it is translucent with a 
colour ranging from orient blue through Alice blue to sky grey 
(Ridgway, 45'" to 45" f), rarely sky blue (47'd) or Yale blue (47'b). 
The tint quite frequentl}^ varies in different parts of the one 
crystal. The crystals vary in size from 5x2x1 mm. to 70 x 20 x 5 
mm., the larger sizes being more plentiful. A single crystal col- 
lected in the vicinity \)y A. King (a local resident) reaches 80 x 30 
X 15 mm. Often the crystals are curved or bent. They occur 
singly in the quartz or in large confused groups of many indivi- 
duals. Fine scaly muscovite or biotite in very small amount is the 
only mineral associated with them in the quartz. The forms com- 
monly seen are (100), (010) and (001); (Oil) appears in traces on 
one or two crystals. The typical cleavages and basal parting are 
everywhere conspicuous. No twinning can be recognised in hand 
specimens. 
South Bindoon, — E. de C. Clarke was the first to find kyanite 
in 1925 on a northerly spur of Red Hill, about ? mile east of the 
school reserve and near the south-east corner of Loc. 1363. The 
mineral is abundant over several acres of outcrop of what 
appears to be a granite gneiss. The main rock is traversed by an 
epidiorite dyke and l)y many thin lenticular quartz veins which are 
parallel to the foliation. That severe metamorphism has gone on 
in the locality is indicated not only by the development of second- 
ary kyanite, muscovite and biotite, but by intense local folding 
over small areas. Two detrital boulders of vein quartz were 
picked up showdng em])edded kyanite in white and iron-stained 
crystals up to 45 x 20 x 5 mm., the specimens being reminiscent of 
the Lower Chittering occurrence. None was found, however, in situ 
in any of the many small quartz veins, but in many places smaller 
kyanite crystals are plentiful in this biotitic layers of the rock in 
contact with the veins. The typical occurrence, however, is in 
long narrow lenses of the gneiss parallel to the foliation. These 
