MINERALS OF NEW ZEALAND. 281 
TETRAHEDRITE !—Collingwood, a variety, Aichmondite, occurs as 
as a lode at Richmond Hill. Analysis (Skey) :— 
Sulphide of lead ite ie i 
7 5» antimony... 1, 122-20 
3 , bismuth ... ... traces 
‘5 mecopper, UC Mp rd 9-3) 
. » iron BAA 19ia1 3°50 
o +) VANE cae OES 2p 
9 5, silver — sa 2°39 
es 5, Manganese ve ‘52 
100-00 
Tin !—Reefton, in granite (McKay, 1874); Stewart Island, in 
mica gneiss (McKay, 1889). 
Topaz !—Chatto Creek, Arrow River, Waipori, in alluvium, 
: mixed with rubies, garnets, &c. (Hector); Stewart 
Island, with tin stone (McKay), determined by Skey. 
Tremo.ite !—Kanieri, Hokitika, Milford Sound, in quartzite 
(Hector). 
VivianitE !—Dunedin, Awatere, as prismatic crystals in moa 
bones (Hector). 
Wap ! !—Auckland, as crystals (Hector, 1870) ; Stewart Island 
(McKay, 1886). 
WaAVELLITE !—Taranaki, occurs in thin seams of a deep yellowish 
brown colour, hard, translucent and infusible, traversing 
the taranakite in various directions (Skey). 
WITHERITE, or BarRyTo-cALcITE !—Thames, in gold mines (Skey). 
Wotrram ! !—Stewart Island, with tin stone (McKay, 1889). 
WottastonitE !—Dun Mountain, massive in form. Analyses 
(Skey) :-— 
1 2 3 4 
Silica ... 48:01 49°30 50°62 58-80 
Lime... 46:20 45:91 44°88 24-60 
0 
Alumina 145 1-41 1°84 | 5% 
Tron oxide traces traces 1°64 { 
ae  .-, 2 e RD: . traces 
8°8 
4°6 
Magnesia traces °80 traces 146 
2-2 
1-4 
Miter. 2" loeeoe | 102. 4 
100-00 100-00 100-00 100-00 
WULFENITE !|—Dun Mountain, as crystals of a flat tabular form. 
