 | | Journal (article/letter/editorial) | | 153 –172 Stuttgart, März 2003 Pumpellyite– actinolite facies quartzites from the eastern cover of the...Olejniczak, K. & Koepke, J. (2003): Pumpellyite – actinolite facies quartzites from the eastern cover of the...consists of albitic plagioclase, pumpellyite, actinolite/ferroactinolite, clinozoisite, chlorite, muscovite...plagioclase decomposition products are associated with actinolite/ferroactinolite and chlorite. The metamorphic...assemblage indicates sub-greenschist pumpellyite – actinolite facies; rocks belonging to this facies were not |  | | Report (volume) | | -----------------------Uranium-bearing lode occurrences ____ ----___________________________ 7 7 11...claims___ ______ __ __ _______________ Other occurrences in Lemhi County______________________ Camas district...CountY---------------------------------------Pegmatite occurrences______________________________________..._____________________________ Miscellaneous occurrences-Mosquito Bay area_______________ Other properties...Uranium-bearing lode occurrences-Continued Washington-Continued Veins and veinlike occurrences-Continued Leonard's |  | | Journal (article/letter/editorial) | | associated mineral zones in the hybrid ultramafic-pegmatite association of the neoproterozoic hafafit core...associated mineral zones in the hybrid ultramafic-pegmatite association of the Neoproterozoic Hafafit core...mineral zones are well developed when the granitic pegmatite veins cross-cut through ultramafic rocks at the...anthophyllite-, actinolite- and vermiculite-bearing zones, whereas the second group related to the pegmatite veins...veins (pegmatite-related zones) comprises hercynite- and corundum-bearing zones. Tourmaline-rich zone only |  | | Journal (article/letter/editorial) | | MINERALOGY OF AN EVOLVED DICKINSON COUNTY, MICHIGAN, PEGMATITE. T. W. Buchholz1, A. U. Falster 2, W. B. Simmons2...(1961) documented approximately ninety known pegmatite occurrences in central Dickinson County in the Upper...Upper Peninsula of Michigan. A small beryl-rich pegmatite was investigated to describe its mineralogy and...determine its degree of geochemical evolution. The pegmatite is emplaced in Lower Proterozoic metamorphic rocks...probable that the pegmatite is late- to post-Penokean in age. Local control for pegmatite emplacement appears |  | Rajesh, H.M., Knoper, M.W., Belyanin, G.A., Safonov, O.G., Schmidt, C. (2020) Petalite postdating spodumene in pegmatite as a consequence of the ~2.02 Ga meteorite impact in the Vredefort structure, southern Africa. Lithos, 376. 105760pp. doi:10.1016/j.lithos.2020.105760 | Journal (article/letter/editorial) | | Journal Pre-proof Petalite postdating spodumene in pegmatite as a consequence of the ~2.02 Ga meteorite impact...Belyanin, et al., Petalite postdating spodumene in pegmatite as a consequence of the ~2.02 Ga meteorite impact... Journal Pre-proof Petalite postdating spodumene in pegmatite as a consequence of the ~2.02 Ga meteorite impact...spodumene and petalite crystallize na from the pegmatite melt, depending on pressure and temperature. This...Keywords: petalite; spodumene; rare-element granitic pegmatite; meteorite impact; Vredefort na 1. Introduction |  | | Journal (article/letter/editorial) | | 5. Harris Park 6. Devils Head 7. South Platte pegmatite district 8. Mount Antero 9. Ruby Mountain 10....15. Otero County barite occurrences 16. Royal Gorge (Eight Mile Park) pegmatite district 318 ROCKS &...MINERALS 17. Micanite-Guffey pegmatite district 18. Devils Hole pegmatite 19. Grape Creek cordierite-gahnite...Green Mountain kimberlite 23. Crystal Mountain pegmatite district 24. Genessee Park calc-silicate locality...amethyst locality 32. Elbert County petrified wood occurrences Downloaded by [Erciyes University] at 19:27 |  | | Journal (article/letter/editorial) | | found in a quartz-oligoclase type of desilicated pegmatite at Věžná, Western Moravia (Černý 1966), but...associated with hydrous silicate minerals such as actinolite, tremolite, clinochlore, and epidote. Stokesite...solutions rich in Fe and Mn. In the two pegmatite occurrences, stokesite is considered to be an alteration...two genetic types (Table 8). The first is the pegmatite type. The stokesite at Ctidružice (former Czechoslovakia)...Czechoslovakia) originated from albitization of pegmatite and was sandwiched in the tiny cracks of the aphanitic |  | Chiarenzelli, Jeffrey, Lupulescu, Marian, Robinson, George, Bailey, David, Singer, Jared (2019) Age and Origin of Silicocarbonate Pegmatites of the Adirondack Region. Minerals, 9 (9) 508 doi:10.3390/min9090508 | Journal (article/letter/editorial) | | collapse, voluminous leucogranite and granitic pegmatite intrusion, iron and garnet ore development, and...represent a continuum between vein-dyke and skarn occurrences involving the anatexis of metasedimentary country...Metasedimentary Belt of Ontario and Quebec, with similar occurrences in the Adirondack Mountains of northern New York...tectonic evolution of the region [2,3]. These occurrences are characterized by their intrusive nature and...by the melting of marble intruded by granitic pegmatite, with melting assisted by fluxing agents, and |  | | Book (volume) | | Ostrosi Romania by V. Ianovici and M. Borcos Bulgaria by B. Bogdanov Greece by G. Marinos Cyprus by..._ Belgium; Southeast Europe includes Albania, Bulgaria, Cyprus, Greece, Hungary, Romania and Yugoslavia;...Molybdenum mineralization Uranium mineralization Pegmatite deposits The Dinarides region sensu stricto Hercynian...183 185 185 186 Tungsten ore deposits . Tin occurrences . Mercury mineralization Uranium ore deposits...Mineral deposits Internal zones External zones Bulgaria by B. Bogdanov Introduction : Structural netallogenic |  | | Conference Proceedings (Volume) | | modelling of the Nb-Ta-Sn mineralised Gatumba pegmatite field (Rwanda) .................................Hartmut Beurlen & Karel Breiter Contributions to pegmatite exploration within granitic plutons in central...and trace elements in Balkan bituminous coal, Bulgaria .. ............................................vegetation from the Maritza East Coal region, Bulgaria . . ............................................of crust of oceanic type contain small Co-Ni occurrences and giant chromite deposits but both of them |  | | Journal (issue) | | resulting in the formation of many dykes and veins of pegmatite and aplite. Four generations of Ketilidian pegmatites...particularly characterised by many dykes and veins of pegmatite and aplite. Four generations of Ketilidian pegmatites...ore. Alteration minerals: Chlorite, sericite, actinolite, saussurite, ore. The feldspars (oligoclase and...Alteration minerals: Chlorite, green biotite, actinolite, zoisite, sericite, goethite. Biotite occurs...pillows: amphibole (common green hornblende and actinolite), biotite, albite (An 5 °lo), quartz. In the |  | | Book (edition) | | additional observations on tests and mineral occurrences that can be included in later editions of this...that cut through the strata, giving isolated occurrences of igneous rocks in a great sedimentary terrain...its associate, the very coarse variety known as pegmatite (see Pi. 6, entry 5). The rock collector's variety...range from a millimeter to a centimeter and more. Pegmatite is the name for a very coarse granite in which...dioritic rock composed almost entirely of feldspar; occurrences in the Adirondacks, in Finland, and in Labrador |  | Küster, Dirk, Romer, Rolf L., Tolessa, Dandena, Zerihun, Desta, Bheemalingeswara, K., Melcher, Frank, Oberthür, Thomas (2009) The Kenticha rare-element pegmatite, Ethiopia: internal differentiation, U–Pb age and Ta mineralization. Mineralium Deposita, 44 (7) 723-750 doi:10.1007/s00126-009-0240-8 | Journal (article/letter/editorial) | | 1007/s00126-009-0240-8 ARTICLE The Kenticha rare-element pegmatite, Ethiopia: internal differentiation, U–Pb age...Springer-Verlag 2009 Abstract The Kenticha rare-element pegmatite, a globally important tantalite source in the...corresponds to the spodumene subtype of the rareelement pegmatite class and belongs to the lithium–cesium– tantalum...tantalum petrogenetic family. The Kenticha pegmatite is asymmetrically zoned from bottom to top into granitic...an internal geochemical differentiation of the pegmatite sheet proceeding from the lower zone (K/Rb ~36 |  | | Book (edition) | | additional observations on tests and mineral occurrences that can be included in later editions of this...which cut through the strata, giving isolated occurrences of igneous rocks in a great sedimentary terrain...its associate, the very coarse variety known as pegmatite (see P1. 6, 2). The rock collector’s variety will...may range from Me to %in. (1 mm-1 cm) or more. Pegmatite is the name for a very coarse granite (see Pls...CLASSIFICATIONS is composed almost entirely of feldspar; occurrences in the Adirondacks and in Labrador of labradorite |  | | Book | | H H O H Ctf c/3 O H DEEP LEVEL aplite, pegmatite foliated, gneissic, migmatitic granite ω pc...leucocratic equivalents, polymineralic (e.g. aplite, pegmatite) or monomineralic (vein quartz); and (3) lamprophyres...the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz, chalcopyrite, talc, etc...notable for the presence of a relatively widespread pegmatite, an unusual member of epizonal plutons. Boulder...stage quartz-feldspar rocks (aplite, alaskite, pegmatite) apparently transitional into hydrothermal metasomatites |  | | Journal (article/letter/editorial) | | resulting in the formation of many dykes and veins of pegmatite and aplite. Four generations of Ketilidian pegmatites...particularly characterised by many dykes and veins of pegmatite and aplite. Four generations of Ketilidian pegmatites...ore. Alteration minerals: Chlorite, sericite, actinolite, saussurite, ore. The feldspars (oligoclase and...Alteration minerals: Chlorite, green biotite, actinolite, zoisite, sericite, goethite. Biotite occurs...These schists are principally composed of tale, actinolite, chlorite and minor amounts of hornblende. c) |  | | Book | | monzonlte, d i o r i t e O 3 DEEP LEVEL aplite, pegmatite foliated, gneissic, migmatitic granite Pi Q...leucocratic equivalents, polymineralic (e.g. aplite, pegmatite) or monomineralic (vein quartz); and (3) lamprophyres...the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz, chalcopyrite, talc, etc...notable for the presence of a relatively widespread pegmatite, an unusual member of epizonal plutons. Boulder...stage quartz-feldspar rocks (aplite, alaskite, pegmatite) apparently transitional into hydrothermal metasomatites |  | Novak, M., Skoda, R., Gadas, P., Krmicek, L., Cerny, P. (2012) Contrasting Origins of the Mixed (NYF + LCT) Signature in Granitic Pegmatites, with Examples from the Moldanubian Zone, Czech Republic. The Canadian Mineralogist, 50 (4) 1077-1094 doi:10.3749/canmin.50.4.1077 | Journal (article/letter/editorial) | | Li-bearing (lithium micas + elbaite) Kracovice pegmatite, with “amazonite”, samarskite and fergusonite...is the product of the strong fractionation of pegmatite-forming melt derived from the orogenic I-type...granite– pegmatite system of the Třebíč pluton and the mainly Li-bearing Kracovice pegmatite are typical...petrogenetic family. The contaminated elbaite-subtype pegmatite Bližná I, Český Krumlov Unit, with lithium tourmalines...contamination with Ca, Mg and REE of an evolved (LCT) pegmatite-forming melt by distal carbonatite-like marbles |  | Caroff, Martial, Coint, Nolwenn, Hallot, Erwan, Hamelin, Cédric, Peucat, Jean-Jacques, Charreteur, Gilles (2011) The mafic–silicic layered intrusions of Saint-Jean-du-Doigt (France) and North-Guernsey (Channel Islands), Armorican Massif: Gabbro–diorite layering and mafic cumulate–pegmatoid association. Lithos, 125 (1) 675-692 doi:10.1016/j.lithos.2011.03.019 | Journal (article/letter/editorial) | | complexes show spectacular pegmatoid (gabbroic pegmatite) occurrences systematically associated with coarse-grained...phase (from 30 to 65 vol.%), with interstitial actinolite (which replaces oikocrysts, probably of pyroxene)...plagioclase laths, green hornblende, acicular actinolite, Fe–Ti oxides, apatite, biotite and sparse titanite...greenschist facies mineral assemblage (albite, actinolite, epidote, and chlorite). The SJIC (Q-)monzonites...75 vol.%). The main ferro-magnesian mineral is actinolite. The Qmonzonites, which are mainly located east |  | | Report (issue) | | s111dies on each mineral; listings of other known occurrences and etymology. No attempt however is made to...Brabantite was first described from the Van der Made pegmatite on the farm Brabant 86, west of Etiro in the Kari...of calderite from Namibia, a number of other occurrences have been described, mostly within metachert...Chinhoyi, Zimbabwe (Kalbskof, 1987). Other notable occurrences include: Brandy Gill and Low Pike, Calde b e...dised portions of eosphorite from an unspecified pegmatite in the Karibib disnict (Seeliger and Miicke, 1970) |  | Köhler, Martin, Hanelli, Delira, Schaefer, Stefan, Barth, Andreas, Knobloch, Andreas, Hielscher, Peggy, Cardoso-Fernandes, Joana, Lima, Alexandre, Teodoro, Ana C. (2021) Lithium Potential Mapping Using Artificial Neural Networks: A Case Study from Central Portugal. Minerals, 11 (10) 1046 doi:10.3390/min11101046 | Journal (article/letter/editorial) | | design a final map of predicted Li mineralisation occurrences in the study area. The proposed approach reveals...geochemical point of view. The relative importance of pegmatite, brine, and other deposits is discussed by [3]...and deposits. An overview of Li-rich mineral occurrences in northern Portugal is provided by [7], and...different styles of Li mineralisations (aplite–pegmatite dykes occurring in pegmatitic fields, Li mineralisation... allowing an increase in the knowledge on Li pegmatite distribution. 1.1. Geological Overview of the |  | | Journal (article/letter/editorial) | | Pilbara pegmatite province in the Archean North Pilbara Craton contains at least 120 pegmatite deposits...deposits in over 27 pegmatite groups and fields, including the giant Mount Cassiterite tantalum orebody in...in the Wodgina pegmatite district. Generally, rare metal pegmatites in the province are hosted by mafic-ultramafic...that have given rise to different petrogenetic pegmatite suites can be identified in processed radiometric...character that permitted formation of significant pegmatite mineralization. They represent the culmination |  | | Journal (issue) | | are a series of minerals including tremolite, actinolite, "mountain leather," crocidolite, and arnosite...serpentine, and not tremolite as formerly believed. .Actinolite is mined in some parts of the world, but it is...concrete and used for road surfacing. Brazil, Bulgaria, China, and Cyprus also have asbestos quarries...the offices of Rocks and Minerals a specimen of pegmatite, about 2 x 2 x 3 inches in size, from the Barrus...brown and all three gemmy. Present also in the pegmatite was a tiny lustrous black platy ilmenite. - |  | | Report (issue) | | greater measure of critical judgment regarding occurrences than was made by Ziegler is necessary in a work...two decades has checked essentially all of the occurrences and the literature of the minerals of the Black...identifications. Helpful suggestions on field occurrences and pegmatite mineralogy were received horn Dr. James...addition to the Black Hills proper. important occurrences from the Bad Lands and indeed all of South Dakota...the pertinent literature, and the important occurrences. In the appendix all known mineral locality names |  | | Report (issue) | | of beryllium-bearing deposits.______ Related occurrences........___________________ Beryllium in vein...-_-_---_------_----_-Index map of beryllium occurrences in Dragoon Mountains, Cochise County, Ariz__...__ Index map showing nonpegmatite beryllium occurrences investigated in the Eastern United States____________...quartz-gold and manganese veins. In most of these occurrences beryllium is found with fluorite; in pyrometasomatic...attention has been focused on rocks other than pegmatite as potential sources of beryllium. During the |
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