e 
116 N. Z. ROCKS. 
32. Cray AND Loam Group. 
Earthy deposits chiefly composed of Clay, which when 
moist are more or less plastic. 
Clay. Pakawau, Nelson. 
. Loam. 
. Graphite Clay. Pakawau. 
Micaceous Clay. Otepopo, Otago. 
Saxe 
33. CLAYSTONE AND HARDENED CLAy Group. 
Compuct and tolerably solid masses, composed of Clay, 
not slaty, fracture earthy, color various. 
a. Compact Claystone. Auckland. 
b. Vesicular Claystone. Lyttelton Tunnel. 
ec. Amygdaloidal Claystone. Lyttelton Tunnel. 
35. Limestone Group. 
Crystalline-granular, compact, earthy or oolitic agere- 
gates of Calespar, eflervesce with acids, scratch 
under the Knife. 
a, Granular Limestone. : 
a1. Crystalline Limestone. Ruatanua, Nelson. 
@2.Suberystalline Limestone. West Wanganui. 
ab. Anthraconite. 
6. Compact Limestone. Clarence River, Marlborough. 
bb. Bituminous Limestone. Shag Valley, Otago. 
be. Cherty Limestone. Teawaiti. 
ca.Chalk, Conway River, Nelson. 
d. Oolite Limestone. Motanau, Canterbury. 
e. Nodular Limestone. Hampden, Otago. 
J. Slaty Limestone. Blue Creek. 
a. Spongy Limestone. Tokomairivo, Otago. 
J: { b. Caleareous Tuff. Hot Springs. 
h. Geodic Limestone. Hampden, Otago. 
2. Cellular Limestone. Nelson. 
k. Breccia Limestone. Ruatanua. : 
m. Fibrous Limestone. Aorere Caves, Nelson. 
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