g PLUTONIC ROOKS.—CASHS I. AND 11, 
60. TERNARY GRANITE. f 
Map No. Rb (7a). 
Fraser’s ' Contract for Coliban 
Water Supply, Preston Vale. 
4 sheet, 
Obtained 4} chains from north end of 
tunnel. It is exceedingly hard. The 
felspar is of a green color, and iron 
pyrites octur disseminated through the 
rock, 
61. Ternary GRANITE. 
Map No. Rb 20, 
O’Keefe’s Contract for Coliban 
Water Supply, Preston Vale. 
4 sheet 13 N.W. 
Very hard, with white and bluish- 
white felspar (orthoclase and oligoclase 
respectively). From Government shaft 
No.2. (See Table of Analyses, page 94.) 
*62. Ternary GRANITE. 
Map No. Ra 31. 
Brewery Springs, Maldon. 3 sheet 
14 N.W. 
From a dyke-like mass in the Silurian 
rocks. 

64. TERNARY GRANITE. 
List No. R (8) 
Carter’s Rosebrook Station. 
Flesh-colored, 
65. TERNARY GRANITE. 
Map No. Rb 26. 
eng epe Contract, Coliban Water 
‘ ake iE resto Vale. 4 sheet 
From Government sh 
aft No. 3,116 
yards from surface. The felspar is of a 
sreenish-white tint, and : 
pearly lustre. i has a peculiar 
66. TERNARY GRANITE. 
ae Map No. Rb 19, 
O’Keefe’s Contract, Coliban Water 
Supply, Preston Vi à 
13 hr reston Vale. 4 sheet 
From bottom of Government shaft 
No. 1, 92 feet 7 inches from surface. It 
consists of grey quartz, black mica, and 
semi-decomposed yellow felspar, 
67. SYENITIC GRANITE. 
Gabo Island, 
arenes 4 red felspar, quartz, and 
63. TERNARY QRANITE. e aede, good building stone, but 
i oe List No. Re5, | SXPeMSsive to work. "Usedin the General 
9 ; ` | Post™ Office, the Custom | House, and 
Ryrie’s Flat, Badger Creek, Upper | the Australasian Insurance Company’s 
Yarra, flices, 
a ee 
Case II, . 
GRANITIC ROCKS AND PORPHYRIES. 
\ 

GRANITIC ROCKS—(continued), 
*68, Granite Porruyny, 
’ Map No, Ra 3. 
Near S.W. corner of lot 8, section 
24, Tarrangower. 4sheet4 S.W., 
A grey felspathic base, with scattered 
quartz and felspar crystals, a little 
mica and iron pyrites; also rounded 
quartz grains. It weathers white. 
*69. TERNARY RANITE. 
Map No. Ra 13. 
Near lot 10, section 2a, Maldon, 
ł sheet 14 S.W. 
Occurs in Silurian rocks. It decom- 
poses in patches. 
70. TERNARY GRANITE. 
List No. R (R) 
Mansfield Road, Broken River. 
*71. TERNARY GRANITE. 
Map No, Ra 10. 
Section 2a, Baringhup. 3 sheet 
14 S.W. it a 
Traversing granite, and consisting of 
a coarse granular base of quartz and 
felspar, with dark felspar crystals. It 
passes into a coarse granite. 
Those marked with an * occur as dykes (Elvans), 
