 | Graham, I. T., Pogson, R. E., Colchester, D. M., Baines, A. (2003) Zeolite crystal habits, compositions, and paragenesis; Blackhead Quarry, Dunedin, New Zealand. Mineralogical Magazine, 67 (4) 625-637 doi:10.1180/0026461036740122 | Journal (article/letter/editorial) | | compositions, and paragenesis; Blackhead Quarry, Dunedin, New Zealand I. T. GRAHAM1, R. E. POGSON1,*...Street, Macandrew Bay, Dunedin, 9003 New Zealand ABSTR ACT Blackhead Quarry exploits a small Miocene...volcanic centre in the Dunedin Volcanic Group, New Zealand. Vesicles near the quarry top contain Ca- and...thomsonite. Later Na-rich fluids crystallized gonnardite and natrolite, and finally calcite from late...varies widely. Various lithologies comprising the Blackhead volcanic centre have unique secondary mineral |  | | Journal (article/letter/editorial) | | are exposed along the Black Sea Coast near Trabzon city (Fig. 1a), and composed of foid-clinopyroxene or...(ÇAMUR et al. 1996, ARSLAN et al. 1997). In the region, the Eocene units are mainly volcanics, rarely...From the end of the Middle Eocene to present, the region was largely above sea level, with minor volcanism...71:15 S, A38. ARTIOLI, G. & GALLI, E. (1999): Gonnardite: Reexamination of holotype material and discreditation...International Mineralogical Association, Commission on New Minerals and Mineral Names. – Can. Mineral. 35: 1571–1606 |  | | Book | | years this has lead to the establishment of many new species that are compositional and structural analogs...Subcommittee for Zeolite Nomenclature of the Commission on New Minerals and Mineral Names (CNMMN) of the International...evaluating proposed new species, it is difficult to apply them rigidly to accepted species. 1. A new zeolite mineral...must be demonstrated as a condition for approval of new species. Zeolites that have the same framework and...structure are acceptable as separate species. 2. A new zeolite mineral cannot be defined solely on the basis | | | Book | | years this has lead to the establishment of many new species that are compositional and structural analogs...Subcommittee for Zeolite Nomenclature of the Commission on New Minerals and Mineral Names (CNMMN) of the International...evaluating proposed new species, it is difficult to apply them rigidly to accepted species. 1. A new zeolite mineral...must be demonstrated as a condition for approval of new species. Zeolites that have the same framework and...structure are acceptable as separate species. 2. A new zeolite mineral cannot be defined solely on the basis |  | | Journal (issue) | | the future Tony Bazley kindly introduced me as the new Chairman with a ‘dirty’ picture in Earth Science...comparative studies, yet more remains to be done. Major new questions provoked by ongoing studies await answers...basin. This lay between what were to become the new daughter continents of Laurentia and Gondwana as...metamorphic mineral assemblages were destroyed and new minerals were formed compatible with higher temperatures...into schists by recrystallization, with growth of new minerals stable at the higher temperatures and pressures |  | | Book | | MineralogicalRecord.com I IIMORIITE-(Y) EUROPE FRANCE Trimouns quarry, Luzenac, Ariege. Operated for talc since the beginning...beginning of the 20th century, the Trimouns quarry became well known to collectors around 1990 for the...good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many...1991). Simdeled, Aust-Agder. Early in 1999, in a quarry near S~ndeled, collectors opened a pocket containing...PORTUGAL Montijos quarry, Monte Redondo, Leiria Estremadura. The Montijos gabbro quarry at Monte Redondo |
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Blackhead Quarry, Dunedin City, Otago Region, New Zealand