22 VOLCANIC ROCKS.— CASE y t 
Case V. 
OLDER AND NEWER VOLCANIC. 
beee ea 
OLDER VOLCANIC—(continued). 
50. ÅMYGDALOIDAL BASALTIC 
CLAY. List No. Rs. 790. 
North Coast, Phillip Island. 
Light chocolate color, with roundish 
kernels and narrow veins of white 
silicate of alumina and magnesia. (See 
Table of Analyses, page 94.) 
51. AmyGDALOIDAL BASALTIC 
CLAY. List No. Rs 790. 
North Coast, Phillip Island. ~ 
Of marble-like appearance, colored 
brown, greyish-blue and white, (See 
Table of Analyses, page 94.) 
52. GreY-AND-WHITE BASALTIC 
CLAY. List No. Rs 79u. 
North Coast, Phillip Island. 
Amygdaloidal in parts. 
53. AMYGDALOIDAL BASALTIC 
CLAY. List No. Rs 79x. 
North Coast, Phillip Island. 
Dark brown, with white and yellow 
roundish kernels. 
54, BASALTIC CLAY. 
List No. Rs 79F. 
North Coast, Phillip Island. 
Half grey, half dark red, and mottled. 
55. BASALTIC CLAY. 
s List No. Rs 798. 
North Coast, Phillip Tsland. 
Light-grey and brown mottled. 
56. Rep, BASALTIC Cray. 
List No. Rs 79D. 
P North Coast, Phillip Island. 
Of pretty uniform color throughout. 
(See Table of Analyses, page 94.) 

57. Basauric OLAY. 
List No. Rs 80. 
South Coast, Phillip Island. 
_ Red, grey and yellow mottled; por- 
tions consist of brown iron-ore. 
58. BASALTIC CLAY. 
List No. Rs 81. 
Pyramid Rock, Phillip Island. 
Of marble-like aspect; bluish-grey, 
brown and white mottled. 
59. BLACK, FINE-GRAINED BASALT. 
List No. Rs. 82. 
Pyramid Rock, Phillip Island. 
In course of decomposition ; traversed 
by innumerable thin, white clay veins. 
It shows a hackly fracture, and some 
portions are of a grey rusty color. 
60. NODULE OF PARTLY DECOM- 
POSED BASALT. List No. Rs 79a. 
North Coast, Phillip Island. 
The exterior of the nodule is decom- 
posed to a yellowish-brown clay, while 
the interior yet remains a hard, dense 
basalt. Concentric rings in the exterior 
portion show the progress of the decom- 
oer (See Table of Analyses, page 
61. Basartic, Brown Inoy-Ore 
CONGLOMERATE. List No. Rs 80. 
South Coast, Phillip Island. 
This specimen, though from its mode 
of occurrence evidently a decomposed 
basalt, has assumed the appearance 
of a brown iron-ore conglomerate ; the 
pebble-like concretions of the rather 
argillaceous brown iron-ore being ce- 
mented together by a dark grey and 
brown ferruginous clay. 
