 | | Report (issue) | | Wairakite CaAl2 Si4 O12 ² 2H2 O ° c 2001 Mineral Data Publishing, ver sion 1.2 Crystal Data: Monoclinic...New Zealand, on North Island, at Wairakei, about six km north-northeast of Lake Taupo, and in the Tui...Virgin Islands. In the Buttle Lake area, Vancouver Island, British Columbia, Canada. In Japan, in the Seikoshi...USA, 137192. References: (1) Steiner, A. (1955) Wairakite, the calcium analogue of analcime, a new zeolite...(2) Coombs, D.S. (1955) X-ray observations on wairakite and non-cubic analcime. Mineral. Mag., 30, 699{708 |  | | Journal (article/letter/editorial) | | telyadjaT•E TriassicKarmutsenGroupin the Buttie Lake acterizingthe plagioclase cent to the amygdules...and a few interlavasediments(Fig. 2). In the Buttle Lake areathis sequence of volcanicrocksis neitherhighly...pumpellyiteand albite,or lesscommonlyto prehnite, wairakite,or laumontite. All of the glasshas altered to... Fro. 1. Index map showinglocationof the Buttie Lake area. 961 962 RONALD C. SURDAM o o•o• Upper...400' the section the reddish -- Permian Buttie Lake Fm. In the thin-layeredflows above the basal pillow |  | | Journal (article/letter/editorial) | | PUMPELLYITE FROM THE KARMUTSEN GROUP, VANCOUVER ISLAND, BRITISH COLUMBIA Rowalo C. Sunnalr, Departmentof Geology...of the Triassic Karmutsen Group of central Vancouver Island, B. C. The prehnite and pumpellyite occur...from the Karmutsen Group in the Buttle Lake area of central Vancouver Island provides valuable information...thin interlava sediments(Surdam, 1968). In the Buttle Lake area low-grademetamorphismhas resultedin pre...assemblages. 256 PREIINITE AND PLTMP]iLLVITE FROM VANCOUVER ISLAND ANervrrcnt, 2s7 TrcnNrquns X-ray d.,ifraction |  | | Journal (article/letter/editorial) | | Metamorphism of the Karmutsen Volcanics, Vancouver Island, British Columbia by ROBERT J. STARKEY, JR. AND B....Elk Creek and Upper Campbell Lake areas, Vancouver Island, British Columbia, provide important constraints...eldspar-prehnite and epidote-prehnite-quartz-wairakite coupled with mean isochores derived from homogenization...amygdaloidal quartz indicate that the Upper Campbell Lake area was subjected to metamorphism at 1-5 kb (±0-5...Ca-zeolite-epidote assemblages in the Upper Campbell Lake area is also compatible with P-T estimates. The |  | | Journal (article/letter/editorial) | | P—T Stabilities of Laumontite, Wairakite, Lawsonite, and Related Minerals in the System CaAl2Si208-Si02-H20...first time. Laumontite was grown from seeded wairakite to over 99 per cent using a weak NaCl solution...laumontite involves two reactions: (1) laumontite = wairakite+2HiO, passing through about 230 °Cat 0-5 kb, 255±5...solid-solid reaction (3) lawsonite+2 quartz = wairakite passes through 305 °C, 3-4 kb and 390 °C, 4-4...published equilibria determined hydrothermally for wairakite, the phase relations are further investigated |  | | Journal (article/letter/editorial) | | pp. 924-93r (1972) NEW DATA ON THE ANALCIME-WAIRAKITE SERIES Exploration,Department,c,/o Central Research...Research Kazuo HeRene,, Laboratory, SumitomoMetat,Mining Co. Ltd., 3-18-5 a, Chiba, J apan 272, Kuum TANane...Faculty of Scienceand Engineering, Department of Mining TJ niu ersitg, $-?0 N ishioohubo, Shinjuku, E n'gineeri"ng...nalcime, wairakite, and a mineral having a composition intermediate between analcime and wairakite; the monoclinicity...3600 cm-') stretching bands for analcime and wairakite are quite distinct. Tbo oH-o distances for the |  | | Journal (article/letter/editorial) | | Metamorphism of the Karmutsen Volcanics, Vancouver Island, British Columbia fry S. KUNIYOSHI 1 * and J. G. LIOU...Tiiassic Karmutsen Subgroup of northeastern Vancouver Island exhibits a clear-cut contact metamorphism...Tectonic Belt of British Columbia and Southeastern Alaska. On northeastern Vancouver Island it consists almost...(Sutherland Brown, 1966), of the Western Cordillera of Canada. The Insular Belt, 1600 km long and 150 km wide...west. The oldest rocks in the Insular Belt of British Columbia are Pennsylvanian and Permian andesitic pyroclastics |  | | Journal (article/letter/editorial) | | topology relating the minerals calcite, laumontite, wairakite, prehnite, quartz, and zoisite. Simple thermodynamic...laumontite+calcite, or laumonrite + pumpellyite, with wairakite likely to replace laumontite as the stable zeolite...For example, Na-bearing wairakite will be more stable than pure Ca-wairakite and increasing abundance...composition of minerals such as epidote, prehnite, or wairakite from lowvariance assemblages may provide a more-sensitive...1974; and Zen and Thompson 1974) but locally wairakite, which is c o m - Table 1. Mineral compositions |  | | Journal (article/letter/editorial) | | (1970) Synthesis and Stability Relations of Wairakite, CaAI~Si4012.2H~O J . G. L i c i t Department...and 500---5,000 bars Pfluid- The fully ordered wairakite was synthesized unequivocally in the laboratory...continuous transformation from disordered to ordered wairakite evidently accounts for failure by previous investigators...ordered wairakite in runs of week-long duration. The dehydration of metastable disordered wairakite to metastable...synthetic wairakite presented by previous investigators. The hydrothermal breakdown of natural wairakite above |  | | Journal (article/letter/editorial) | | 65, pages 1212-1216, 1980 Lattice constantsof wairakite as a function of chemicalcomposition Masenno Aorr...Tokyo Tokyo 153,Japan Abshact Fourteen natural wairakite specimensfrom Japan were studied to evaluate the...the assumption that the monoclinic lattice of wairakite is closely related to that of analcime. Examin4liea...20"(400)} - 8.933 Q0"e4o) - 20"(n)} Introduction Wairakite (CaAlrSioO,,. 2HrO) is generallyrecognized as...resolution than that used in previous works. Wairakite is commonly found in geothermal areas and its |  | | Journal (article/letter/editorial) | | in the Karmutsen metabasites, Vancouver Island, British Columbia, Canada M. TERABAYASHI Department of...Karmutsen metabasites, exposed over much of Vancouver Island, were thermally metamorphosed by intrusions...800 thin sections from the Campbell River and Buttle Lake area show that the metabasites provide a complete...partitioning; Karmutsen metabasites; low pressure; Vancouver Island. Abbreviations: Ab, albite; An, anorthite;...metamorphic facies. The Karmutsen metabasites of Vancouver Island are an exceptional suite in which this problem |  | | Book | | tetragonal analcime, tetragonal ZEOLITES DEFINED / 5 wairakite, tetragonal edingtonite, triclinic edingtonite...mordenite, natrolite, thomsonite, tschernichite, and wairakite. Species in other mineral groups are commonly...(underlined name has priority) analcime (pollucite and wairakite), chabazite (herschelite and willhendersonile)...DEFINED ANALCIME GROUP Analcime, poilu cite, and wairakite represent one framework with wide variation in...priority. Poilucite, the cesium-bearing member, and wairakite, the calcium-bearing member, form continuous series | | | Book | | tetragonal analcime, tetragonal ZEOLITES DEFINED / 5 wairakite, tetragonal edingtonite, triclinic edingtonite...mordenite, natrolite, thomsonite, tschernichite, and wairakite. Species in other mineral groups are commonly...(underlined name has priority) analcime (pollucite and wairakite), chabazite (herschelite and willhendersonile)...DEFINED ANALCIME GROUP Analcime, poilu cite, and wairakite represent one framework with wide variation in...priority. Poilucite, the cesium-bearing member, and wairakite, the calcium-bearing member, form continuous series |  | | Journal (article/letter/editorial) | | ophiolite. percent),KrO (<0.43weightpercent),and wairakite However,prehnitewas found in only one sample ...e were found in the red shale.The finding of wairakite i n t h e r e d s h a l ea n d o n e p i l l o...the diagnosticzeolitefacies minerals such as wairakite, laumontite, stilbite, and analcime have been...assemblagesa quartz * chlorite t sphene).Except for wairakite, these zeolitebearing assemblages have been commonly...t e s .H o w e v e r ,t o m y k n o w l edge,wairakite has only recentlybeen reported in the hydroth |  | | Journal (article/letter/editorial) | | Karmutsen metabasites, exposed over much of Vancouver Island, were thermally metamorphosed by intrusions...and epidote-amphibole (EA) facies and Jurassic island intrusions (Jg) are shown. Right: Sample localities...6000 m thick and distributed a large part of Vancouver Island (Carlisle and Susuki 1974). The Karmutsen...rocks of the Karmutsen metabasites on central Vancouver Island. Kuniyoshi and Liou (1976a; 1976b) discussed...metamorphism of Karmutsen metabasites of northern Vancouver Island. Cho et al. (1986) examined the phase relations |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | All rights reserved. Published simultaneously in Canada. Reproduction or translation or any part of this...Ercit: Canadian Museum of Nature, Ottawa, Ontario, Canada. Richard C. Erd: U.S.G.S., Menlo Park, California...Miami University, Oxford, Ohio. W. Barclay Kamb: Division of Geol. and Planetary Sci., Cal. Inst. of Tech...Tuscon, Arizona. Barry Yampol: Oyster Bay, Long Island, New York. Victor Yount: Warrenton, Virginia. Josef...first consideration in generating the numbers was division into classes based on composition or, in the case |
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