VICTORIAN MINERALS.—CASE XIV. 83 
7. Agate.—Occurs in the Beechworth drifts, and on the Cape 
Otway coast. 
` 
8. Caťs-eye, Onyx and Sardonyx have been reported from 
Beechworth, &c., but seem to be very scarce. 
9. Flint.—Abundantly scattered through the sands along the 
Cape Otway and Warrnambool coast line, probably derived 
from tertiary formations. 
10. Silicified Wood. — Occurs abundantly in large blocks in 
some of the tertiary formations. 
11. Jasper.—Common alon 
some drifts. 
, 
g the western sea coast, and also in 
12. Hornstone and Chert,—Occur abundantly in veins as sharp 
angular pieces along the Greenstone boundary, Lancefield, 
being a product of metamorphic action. 
13. Lydianstone, Touchstone.—Occurs in drifts and in narrow 
veins in Silurian rocks in the neighborhood of Greenstone. 
14. Opal.—With the exception of “Precious opal,” reported by 
Dr. Bleasdale as occurring at Beechworth, all the other 
varieties are of frequent occurrence, viz. : Hyalite, Kemi- 
opal, Opal-jasper, Wood-opal. 
39. REEF QUARTZ. 
Map No. R 105. 
Mia-mia Ranges. + sheet 13 N.E. 
This quartz presents a peculiar 
feature: it is not found “in situ,” but 
the portion exhibited is one of a number 
of similar pieces, all possessing the same 
saddle-like form, and found scattered 
over the surface; it’ has a concretion- 
ary structure externally, and varies 
in thickness from one to six or eight 
inches, 
40. SILICEOUS ConcRETION. 
Banks of the Glenelg River. 
41. SILICO - CALCAREOUS Con- 
CRETION. Map No. M 29. 
Near Barfold. 3sheet 13 S.R. 
Found in a hole in yellow, red and 
white clay, with siliceous geodes and 
breccias. 
42. GRANULAR QUARTZ, 
: Mount Franklin, 7 Sheet 15 S.E. 
Occurs in the basalt of this extinct -` 
crater. 
43. QUARTZ CRYSTALS. 
Map No. M 27. 
Near N.E. corner of the parish 
of Langley. 4 sheet 5 N.W. 
Note.—These peculiar and rare crystals were discovered by Mr. 
Norman Taylor, of the Geological Survey, in a bed of yellow clay, resting 
on the granite. 
They occur as a horizontal vein, the walls (upper and 
lower) of which were externally nearly flat, the crystals pointing inwards, 
and the intermediate space being occupied by a stiff yellow clay and ‘flat 
plates of quartz. 
The erystals—some of which are nearly 2 inches 
long and three-quarters of an inch thick—are composed of a slightly 
smoky quartz, with hard rough faces, surrounding a small opaque or 
milky quartz crystal, about one-third the size of the external one, and 
very rarely in the centre. The polished specimens exhibit the gradual 
growth or building up of the crystal in a very marked manner, by a 
series of deeper colored, smoky lines, parallel to the terminal faces of the | 
internal crystal. One specimen appears to be split and traversed by 
G 2 

