Cox.—On the Mineralogy of New Zealand. 899 
s.. s. 
in iida traps associated with felsite porphyries in Canterbury, is 
mentioned by Dr. v. Haast (Jurors' Rep. N.Z. Ex., 1865, p. 257). 
Apophyllite, 8 (Oa Si? + 2H) + KF, is mentioned by Dr. v. Haast 
(Jurors’ Rep. N.Z. Ex., 1865, p. 267) occurring in amygdaloids at Ran- 
gitata, and ichthyophthalmite in felsite porphyries at Turnagain Point, 
Rangitata. 
Stilbite, Aj Si? + Ca Si? + 6 H, is mentioned as occurring at Turn- 
again Point, Rangitata, by Dr. v. Haast (Jurors' Rep. N.Z. Ex., 1865, p. 
257). It also occurs at Tokatoka on the Wairoa River, Auckland, as radi- 
ating pearly crystals in a trachytic rock which forms Mts. Maungarahu and 
Tokatoka, and it is again found in a similar rock which occurs at Puke- 
korero, a mourftain lying between the Kaiwaka arm of Kaipara Harbour 
and Mangawhai. Prof. Liversidge (Trans. N.Z. Inst., vol. x., p. 500) also 
alludes to its occurrence at Dunedin in amygdaloidal basalts as follows :— 
* In the cavities of these specimens are minute detached crystals of one of 
the zeolites. The form appears to be that of a rhombic prism capped with 
the pyramid; this is a combination often assumed by stilbite, and in addi- 
tion the little crystals possess a very high lustre, not unlike that of stilbite; 
moreover, they behave like that mineral before the blowpipe, hence they 
probably belong to the same species. 
Prehnite, Aj Si + 2 Ca Si + H.— This mineral is mentioned by Dr. - 
Hector (Jurors’ Rep. N.Z. Ex., 1865, pp. 266 and 487) as occurring in 
the trap rocks of Moeraki and Otepopo, and R. Daintree, Esq., F.G.S. 
(Trans. N.Z. Inst., vol. vii., p. 458), in speaking of a granite rock from the 
Snowy Peak Range, Canterbury, says:—‘ There is a yellowish mineral 
with a fibrous radial structure seen both in the specimen and the section. 
It is evidently a secondary formation, filling spaces between the constituents. 
It is probably prehnite. 
Natrolite, ‘Aj S8 + Na Si + 2 H.—The occurrence of this mineral 
in vesicular basalts near Dunedin is mentioned by Dr. Hector (Jurors’ Rep. 
N.Z. Ex., 1865, pp. 267 and 438), and in the volcanic rocks of Banks 
Peninsula, by Dr. v. Haast (Jurors’ Rep. N.Z. Ex., 1865, p. 257). It is 
also mentioned in the old catalogues of the Otago Museum as specimens 
from. Oamaru in trachyte, from Mount Livingstone and from Look-out 
Point. There are numerous specimens of this mineral in the collection of 
the Colonial Museum, in cavities in the basalts from Dunedin. They are 
arranged in beautiful little tufts of fine acicular crystals, sometimes alone, 
and sometimes on chabasite; in other specimens they are massive but 
mammillated, and in others they are composed of short rhombic prisms with 
pyramidal ends, but these also occur in tuft-like groups. There is also a 
