 | Oberti, Roberta, Boiocchi, Massimo, Hawthorne, Frank C., Ciriotti, Marco E. (2018) Ferro-tschermakite from the Ploumanac'h granitic complex, Brittany, France: mineral description. European Journal of Mineralogy, 30 (1) 171-176 doi:10.1127/ejm/2018/0030-2700 | Journal (article/letter/editorial) | | Bâtiment et Granit de Ploumanac’h northern granite quarry, La Clarté, Perros-Guirec, Ploumanac’h granitic...0 2; 3 5 1). Key words: ferro-tschermakite; amphibole; electron-microprobe analysis; optical properties;...(Fig. S3) is a grey-pink granite batholith located east of the Ploumanac’h complex. It is a coarse-grained...the classification and nomenclature of the amphibole supergroup (Hawthorne et al., 2012), we have started...Bâtiment et Granit de Ploumanac’h northern granite quarry, in the Ploumanac’h granitic complex, at La eschweizerbart_xxx |  | | Book | | Saint-Hilaire pluton 36 Geology of the Poudrette quarry Miarolitic cavities in nepheline syenite Sodalite...progressed well through repeated visits to the operating quarry and collaborations with visiting professionals...chiseling away at the quarry walls. Intrigued, they later ventured into the quarry and discovered what...the search continues; their latest visit to the quarry took place in July 2018. Additions were made to...small unassuming hill with a dusty stone quarry on its north flank, which some enthusiastic collectors |  | Narduzzi, F., Farina, F., Stevens, G., Lana, C., Nalini, H.A. (2017) Magmatic garnet in the Cordilleran-type Galiléia granitoids of the Araçuaí belt (Brazil): Evidence for crystallization in the lower crust. Lithos, 282. 82-97 doi:10.1016/j.lithos.2017.02.017 | Journal (article/letter/editorial) | | neighbour Carlos Chagas Batholith located 50 km to the east. In fact such granitoids records TE D granulite-facies...1991; Evans and Vance, 1987); the Dehnow pluton, north east Iran (Samadi et al., 2014); the Bushy Point Granites...Gonçalves et al., 2014). The batholith extends roughly north-south for ca. 600 km, almost the entire length of...is defined by the orientation of biotite and amphibole crystals and marked by the long axis of stretched...%) and K-feldspar (1.5 – 14 vol.%). Biotite, amphibole and garnet are the main mafic minerals (see also |  | Pál-Molnár, Elemér, Batki, Anikó, Almási, Enikő, Kiss, Balázs, Upton, Brian G.J., Markl, Gregor, Odling, Nicholas, Harangi, Szabolcs (2015) Origin of mafic and ultramafic cumulates from the Ditrău Alkaline Massif, Romania. Lithos, 239. 1-18 doi:10.1016/j.lithos.2015.09.022 | Journal (article/letter/editorial) | | augite. In the early stages of their genesis the amphibole was intercumulus while in later stages it acquired...more primitive composition than intercumulus amphibole suggesting closed system fractionation for the...pyroxenerich cumulates. The evolution of the amphibole-rich mesocumulates is more clearly the result...dominated by the precipitation of clinopyroxene and amphibole cumulus crystals. Lamprophyre dykes of the Ditrău...intercumulus amphibole in the cumulates was more primitive whilst that for the cumulus amphibole was more |  | Cao, Wentao, Gilotti, Jane A., Massonne, Hans-Joachim, Ferrando, Simona, Foster, Charles T. (2019) Partial melting due to breakdown of an epidote-group mineral during exhumation of ultrahigh-pressure eclogite: An example from the North-East Greenland Caledonides. Journal of Metamorphic Geology, 37 (1) 15-39 doi:10.1111/jmg.12447 | Journal (article/letter/editorial) | | ultrahigh-pressure eclogite: an example from the North-East Greenland Caledonides Wentao Cao1, *, Jane A...Trowbridge Hall, University of Iowa, Iowa City, IA 52242, USA 2 Institut für Mineralogie und Kristallchemie, Azenbergstraße...melting of Greenland UHP eclogite ABSTRACT In the North-East Greenland Caledonides, P–T conditions and textures...pockets. Graphic intergrowths of plagioclase and amphibole are present in the matrix. Small euhedral neoblasts...900 ˚C, with an assemblage of clinopyroxene, amphibole and plagioclase equilibrated at 1.3 GPa and 720 |  | | Journal (article/letter/editorial) | | Partial melting due to breakdown of phengite and amphibole in retrogressed eclogite of deep Precambrian crust:...Partial melting due to breakdown of phengite and amphibole in retrogressed eclogite of deep Precambrian crust:...Partial melting due to breakdown of phengite and amphibole in 2 retrogressed eclogite of deep Precambrian... 5 1 6 York at Fredonia, Fredonia, NY 14063, USA 7 2 8 Geosciences, Beijing 100083, China 9 ...contained the assemblage of garnet, 26 omphacite, amphibole, phengite, biotite, and rutile at peak pressure |  | | Journal (article/letter/editorial) | | in felsic rocks; by orthopyroxene overgrowing amphibole in mafic rocks and by the presence of olivine...into three distinct tectonic zones (Fig. 1), the north consists of the Afghan - Tajik Platform, stable...Paleozoic (Brookfield and Hashmat 2001). In the south-east the Katawaz basin, a large flexural basin (Treloar...extension of the Makran accretionary complex and the north-western continental margin of the Indian plate....Platform and the Western Hindu Kush. In the South East the Katawaz basin represents the furthest extent |  | | Journal (issue) | | from Tanzania Nephrite Jade from Washington State, USA Copper Minerals in Chalcedony from Indonesia b...Tanzania Nephrite Jade from Washingto n State, USA Copper Mine rals in Chalcedon y from Indon esia...Mobile Bubble | Rhodonite from Washington State, USA | Talc Chinese Seal Stone | Native Copper Inclusions...Imitation Nephrite Jade from Washington State, USA, Including a New Variety Showing Optical Phenomena...Alonso-Perez Harvard University, Cambridge, Massachusetts, USA Alan D. Hart Gem-A, London Karl Schmetzer Petershausen |  | | Journal (issue) | | Hong Kong 691 Gem Notes Baryte from South Dakota, USA| Gems from Mong Long, Myanmar|Pyrite and other sulphides...Cambridge, Massachusetts, USA; Edward Boehm, RareSource, Chattanooga, Tennessee, USA; Maggie Campbell Pedersen...Emmett, Crystal Chemistry, Brush Prairie, Washington, USA; Emmanuel Fritsch, University of Nantes, France;...E. Post, Smithsonian Institution, Washington DC, USA; Andrew H. Rankin, Kingston University, Surrey; Benjamin...Rossman, California Institute of Technology, Pasadena, USA; Karl Schmetzer, Petershausen, Germany; Dietmar Schwarz |  | | Journal (article/letter/editorial) | | through the Makran E–W accretionary wedge in the south east (Berberian, 2014) which is a fragment of the Iranian...approximately along the 3000 m depth contour in the north Oman Sea (Jacob and Quittmeyer, 1979; Berberian...1982; Davoudzadeh et al., 1986), overlain to the east by a highly disrupted, Lower and Upper Cretaceous...mostly harzburgite (Fig. 3). The Makran ophiolite north east of the Bajgan-Dur kan microcontinental block...blocks together with Mesozoic ophiolites, to the north, are found behind the Cenozoic accretionary prism |  | | Journal (article/letter/editorial) | | schistosity-forming minerals, i.e. epidote, glaucophanic amphibole, phengite, and chlorite, suggesting the glaucophane...Asian continent, including northeast (NE) and Far East Russia, NE China, and southwest (SW) Japan (Isozaki... (a) (b) Fig. 1 a Simplified geologic map of east Asia. b Geotectonic framework in the Inner zone...which lies to the south of the Hida–Oki belt in north-central Honshu (Fig. 1b). The Renge belt is composed...the continental plates of the Eurasian and the North American Plates, and oceanic plates of the Pacific |  | Putiš, , Soták, , Li, , Ondrejka, , Li, , Hu, , Ling, , Nemec, , Németh, , Ružička, (2019) Origin and Age Determination of the Neotethys Meliata Basin Ophiolite Fragments in the Late Jurassic–Early Cretaceous Accretionary Wedge Mélange (Inner Western Carpathians, Slovakia) Minerals, 9 (11) 652 doi:10.3390/min9110652 | Journal (article/letter/editorial) | | 4—Hronic nappes; 5—Fatric nappes; 6—Tatric cover; 7—North‐Veporic cover; 8—South‐Veporic cover; 9—Meliatic...9—Meliatic nappes; 10— nappes; 6—Tatric cover; 7—North-Veporic cover; 8—South-Veporic cover; 9—Meliatic nappes;...comprise basement–cover complexes included in a north‐vergency fold and thrust system Belt (PKB) comprise...in a north-vergency fold and thrust system (Figure 1). These are further subdivided from north to south...(Figure 1).Veporic, These are further subdivided from north to south and bottom to top into zones the Infratatric |  | | Journal (issue) | | presentations and special reports|GIT Lab Updates|USA lifts ban on Burmese ruby and jadeite|Margaritologia...inclusions|Clinohumite from Vietnam|Lace opal from Utah, USA|Pollucite from Pakistan with polylithionite inclusions|Large...Edward Boehm, RareSource, Chattanooga, Tennessee, USA; Maggie Campbell Pedersen, Organic Gems, London;...Emmett, Crystal Chemistry, Brush Prairie, Washington, USA; Emmanuel Fritsch, University of Nantes, France;...E. Post, Smithsonian Institution, Washington DC, USA; Andrew H. Rankin, Kingston University, Surrey; George |  | | Journal (issue) | | Edward Boehm, RareSource, Chattanooga, Tennessee, USA; Alan T. Collins, King’s College London; John L....Emmett, Crystal Chemistry, Brush Prairie, Washington, USA; Emmanuel Fritsch, University of Nantes, France;...E. Post, Smithsonian Institution, Washington DC, USA; Andrew H. Rankin, Kingston University, Surrey; George...Rossman, California Institute of Technology, Pasadena, USA; Karl Schmetzer, Petershausen, Germany; Dietmar Schwarz...Gemmologisches Institut, Hamburg, Germany; Tay Thye Sun, Far East Gemological Laboratory, Singapore; Pornsawat Wathanakul |  | Palmeri, Rosaria, Godard, Gaston, Di Vincenzo, Gianfranco, Sandroni, Sonia, Talarico, Franco M. (2018) High-pressure granulite-facies metamorphism in central Dronning Maud Land (East Antarctica): Implications for Gondwana assembly. Lithos, 300. 361-377 doi:10.1016/j.lithos.2017.12.014 | Journal (article/letter/editorial) | | granulite-facies metamorphism in central Dronning Maud Land (East Antarctica): Implications for Gondwana assembly...granulite-facies metamorphism in central Dronning Maud Land (East Antarctica): Implications for Gondwana assembly...granulite-facies metamorphism in central Dronning Maud Land (East Antarctica): implications for Gondwana assembly...granulite D Keywords: Antarctica, Grenvillian orogeny, East African Antarctic (Pan-African) orogeny, Gondwana...used for µg/g. Central Dronning Maud Land (DML; East Antarctica) is located in a key region of the Gondwana |  | | Book | | nature, the band I could be also assigned to the amphibole modules which may occur as a defect part in pyroxene...nomenclature of amphibole-supergroup minerals (Hawthorne et al. 2012b), the amphibole supergroup is divided...charge-arrangements and type of B-group cations. In an amphibole with an empty A site, hydroxyl completes the octahedral...the IR spectrum of synthetic monoclinic (P21/m) amphibole Na(NaMg)Mg5(Si8O22)(OH)2 into the bands at 3742...Hydroxyl Groups in Tourmalines The tourmaline supergroup includes trigonal and, rarely, pseudo-trigonal |  | | 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...long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Edenville, large, fine crystals of spine!, titanite, amphibole and pyroxene have been found since the early 19th |  | Trofanenko, J., Williams-Jones, A. E., Simandl, G. J., Migdisov, A. A. (2016) The Nature and Origin of the REE Mineralization in the Wicheeda Carbonatite, British Columbia, Canada. Economic Geology, 111 (1) 199-223 doi:10.2113/econgeo.111.1.199 | Journal (article/letter/editorial) | | Wicheeda Complex Grey sodic fenite with blue amphibole, rare biotite, and altered apatite Cambrian to...Mountain Trench, which follows the Parsnip River valley east of the property, is the dominant structural and...Devonian carbonates, slates, and siltstones to the east and Upper Proterozoic to Permian Gog Group quartzites...contact with Kechika Group slates (Fig. 2); to the east, it is in contact with NATURE AND ORIGIN OF REE...carbonatite. Small outcrops of carbonatite occur to the east and northeast of the Wicheeda carbonatite, and a |  | Secchiari, Arianna, Montanini, Alessandra, Bosch, Delphine, Macera, Patrizia, Cluzel, Dominique (2020) Sr, Nd, Pb and trace element systematics of the New Caledonia harzburgites: Tracking source depletion and contamination processes in a SSZ setting. Geoscience Frontiers, 11 (1) 37-55 doi:10.1016/j.gsf.2019.04.004 | Journal (article/letter/editorial) | | subduction, related to the east Gondwana active margin, and an Eocene north-east dipping subduction that...minute crystals of colourless amphibole, often in association with talc. Amphibole occurs as single acicular...pyroxene symplectites (KPT3); (g) tremolitic amphibole development on orthopyroxene porphyroclasts (PY1);...either orthopyroxene together with Na2O-rich amphibole and phlogopite (Prouteau et al., 2001) or ortho-...melts. Afterwards, the formation of tremolitic amphibole, often in association with talc (Fig. 3b, g) may |  | | Journal (article/letter/editorial) | | that subduction of the continental margin of the North American plate (Chuacús complex) beneath the Greater...Suture Zone records continental subduction of the North American plate beneath the Greater Antilles arc...oceanic thrust slices located along the current North AmericanCaribbean plate boundary in Central America...and lateral tectonic transport resulting from the North American-Farallon-South American plate interactions...been recognized in the GSZ: (1) the South and (2) North Motagua serpentinite mélanges, (3) the Rabinal Granite |  | | Book | | company address is: 152 Beach Road, #21-01/04 Gateway East, Singapore 189721, Singapore Supervisor’s Foreword...calc-alkaline and alkaline granitoids in Qiman Tagh, East Kunlun, China. Lithos, 239: 45–59. (3) Yu, M., Feng...the Qiman Tagh Mountains . . . . . . 1.5.1 The North Qiman Tagh as an Active Continental Margin . . ...Arc . . . 1.5.3 Collision Between the South and North Qiman Tagh Terrane . . . . . . . . . . . . . . ...resulting from sequential accretion and collision, from north to south, of several microcontinents, flysch complexes |  | | Book | | is mainly Ca-Mg-HCO3 type water. In plateau areas east of the mountain and highland zone, the Upper Cretaceous...plains along the Mediterranean Sea shore and, in the east, into vast plateau like landscapes. The “northwestern...are separated by a zone of approximately south - north oriented rift valleys: Wadi Araba as a continuation...depressions, the Bekaa valley and El Ghab, ending, in the north, in the Amiq depression and Kara Su valley on Turkish...asl in the Mount Hermon massif. The plateau area east of the mountain and rift zone is crossed by the |  | | Book (edition) | | Aegirine-augite, Spodumene 102 Wollastonite 132 Amphibole group 137 171 Anthophyllite–Gedrite, Cummingtonite–...ferrodiorite, upper zone a, Skaergaard intrusion, East Greenland (Vincent, E.A., 1964, Amer. Min., 49,...Fayalite, Gunflint Iron Formation, Minnesota-Ontario, USA (Floran, R.J. & Papike, J.J., 1978, J. Petrol., 19...Olivine in gabbro from the Skaergaard intrusion, East Greenland (crossed polars, scale bar 1 mm), showing...combinations of orthopyroxene, clinopyroxene, spinel, amphibole and garnet. Described as coronas, reaction rims |  | Амплиева, Е. Е., Ковальчук, Е. В., Ковригина, С. В., Петров, В. А., Устинов, С. А. - Eds. (2019) Новое в познании процессов рудообразования: Девятая Российская молодёжная научно-практическая Школа, Москва, 25-29 ноября 2019 г. [New in the knowledge of ore formation processes: Ninth Russian Youth Scientific and Practical School, Moscow, November 25-29, 2019.]. ИГЕМ РАН, Москва. | Book | | and the Bear Lodge syenite-carbonatite in Wyoming, USA. Other potential REE-enriched systems include the...S. Intrusion-related gold-bismuth deposits of North-East Russia: PTX parameters and sources of hydrothermal...Trace element partitioning between mica- and amphibole-bearing garnet lherzolite and hydrous basanitic...Schumacher J.C., Welch M.D. Nomenclature of the amphibole supergroup // American Mineralogist. 2012. V. 97. Iss...Foley S.F. Trace-Element Partitioning Between Amphibole and Silicate Melt // Reviews in Mineralogy and |
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