MINERALS OF NEW ZEALAND. 277 
PREHNITE !— Moeraki, Otepopo, Canterbury, in trap rocks 
(Hector, Daintree). 
Provustire !—Thames (Hutton). 
PsILOMELANE ! !—Waiheke, Wairuakariri, Bay of Islands, Kawau, 
Wellington, massive, and is associated with manganite, 
forming a valuable ore. Analysis (Skey)—sample from 
Bay of Islands :— 
Manganese oxides... Se EO 
Ferric oxide Sut ML E76 
Silicious matters aes sol A 
Water - _ ... 10°04 
100-00 
Pumice ! ! !—Tongariro, Tokano, Lake Taupo, Kereru, Ruapehu, 
&c., along the coast and on the banks of rivers, and on 
the plateaux round Lake Taupo, 2000 feet above the 
sea level, occurs also as pumice sand (McKay) at 
Kereru. ; 
Pyrires (AuriFEROvS) ! !—Thames, Otago, as octahedral crystals 
in quartz reefs. 
Quartz—Amethyst | | |—Rakaia Gorge, in an amygdaloidal trap ; 
Canterbury, in the melaphyres (Haast). 
Cellular Quarts | !—Thames. 
Ferruginous Quartz !!|—Abundant (Lab. and Geol. Reports, ° 
1865). 
Milk Quarts | !|—Everywhere, in the granites, schists and 
slates. 
Rose Quartz | !—Rakaia Gorge, in trachyte and pitchstone 
(Haast). 
Bloodstone !|—Clent Hills, Snowy Peak, Malvern Hills, in 
small fragments (Haast). 
Carnelian |!— Malvern Hills, Mount Charles, Otago, in 
volcanic rocks (Hector). 
Chalcedony |!— Canterbury, Clent Hills, Gawler Downs, 
Tokatoka, Nioeraki, Otepopo, &c., in ‘“‘geodes” in the 
‘‘melaphyres” and quartz porphyries (Hector, Haast, 
Hochstetter). 
Chrysoprase !— Moeraki, Otepopo, Dunedin, Canterbury, 
Coromandel, filling cavities in amygdaloidal rocks 
(Haast). 
Flint ! !—Kaipara, Mount Somers, in chalk marls (Hector) ; 
Campbell Island, in chalk (Hector); Amuri Bluff, in 
limestone (Haast); Bay of Islands, Tapanui (Liversidge), 
(see Trans. N.Z. Inst.) ; Whanganui Heads, in diatom 
earth (Hector). 
