q 
. 
—_ 
24, Quartzose Scuist GROUP. 
114 N. Z. ROCKS. 
Chiefly consist of Quartz, usually contain some Mica. 
a. Common Quartz Schist. Waimongaroa, Nelson, 
b. Granular Quartz Schist. Otago. 
26. Cutorite Scuist GROUP. 
Schistose aggregates of Chlorite, combined with Quartz, 
also with Felspar, Mica and Tale ; color greenish ; 
appearance scaly. 
a. Common Chlorite Schist. Kakapo Lake, West 
Coast. 
27. Tatc Scuist Group. 
Shistose aggregates of Talc combined with some Quartz, 
sometimes with Felspar; Color yellowish or 
greenish ; soft greasy feel. 
a. Common Tale Schist. New-river-head, Otago. 
28. HorNBLENDE-SCHIST GROUP. 
Schistose or fine grained to compact rocks, chiefly 
Hornblende, with small quantities of Felspar, 
Quartz, or Brown Mica. Always dark green to 
black. 
b. Hornblende Rock. The Bluff, Southland. 
c. Actinolite Schist. Maori Point, Shotover. 
29. ArginLAcEtous Mica-Scuist Group. 
Schistose aggregates in which Mica is the chief ingre- 
dient, sometimes differ only from Clay Slate in 
structure by the superior lustre. 
a. Common Argillaceous Mica Schist. 
Wangapeka 
River, Nelson. 
