N. Z. ROCKS. 119 
{V. ROCKS, OF SPECIAL OR ORGANIC ORIGIN. 
44, SERPENTINE GROUP. 
Compact rocks, dull in fresh fracture, soft, greasy feel ; 
dark green or brown. 
Common Compact Serpentine. Windley Creek, Otago 
Porphyritic Serpentine. Mount Arthur. 
Slaty Serpentine. Dun Mountain. 
Veined Serpentine. Awateri. 
RBI SS 
45, DistHENE Rock, EKLOGITE OR SMARAGDITE 
Rock Group. 
Compounds of Smaragdite and Red Garnet. 
w Disthene. Westland. 
46. Zwitter Rock. Anatoki, Nelson. 
A dark grey aggregate, rich in quartz texture, fine 
grained and compact. 
54. Brown Coat, or Lianire Grove. 
Compact or earthy, inflammable, brown or black, 
streak brown. 
. Common Brown Coul. Motanau, Canterbury. 
Earthy Brown Coal. Saddle Hill, Otago. 
Resinous Brown Coal. Shag Point, Otago. 
. Lignite, or Bituminous Wood. Tuapeka, Otago. 
Q 
a: S 
55. Common, Brack, ok Prt-coAL Group. 
Compact black mass, lustre resinous, streak black, 
usually friable, not so inflammable as Brown Coal; 
burns with flame, smoke, and smell. 
1. Gaking Coal. Aorere River, Nelson. 
g. Splint Coal. 
3, Cherry, or Soft Coal, Buller River, Nelson. 
56, Anthracite. Acheron River, Canterbury. 
Black, vitreous to sub-metallic lustre, friable, streak 
black, difficult to ignite, and burns almost without 
smoke and smell. 
