 | Mall�, A., Fontan, F., Melgarejo, J. C., Mata, J. M. (1995) The Albera zoned pegmatite field, Eastern Pyrenees, France. Mineralogy and Petrology, 55 (1) 103-116 doi:10.1007/bf01162582 | Journal (article/letter/editorial) | | in Austria The Albera zoned pegmatite field, Eastern Pyrenees, France A. Mall61, F. Fontan 2, J.-C....Min6ralogie, Universit6 Paul Sabatier, Toulouse, France 3 Departament d'Enginyeria Minera i Recursos Naturals...Summary Four types of pegmatites comprise the zoned pegmatite feld in the eastern sector of the Albera Massif...varieties with L i - F e - M n phosphates, Be (chrysoberyl) and scarce N b - T a and U oxide minerals; type...graphite in the late pegmatite units and in the host-rock. The individual pegmatite types are distributed |  | | Journal (article/letter/editorial) | | FLUID EVOLUTION IN THE ZONED RARE-ELEMENT PEGMATITE FIELD AT CAP DE CREUS, CATALONIA, SPAIN Pura ALFONSO§...inclusions have been studied in all these types of pegmatite to determine the nature of the fluids involved...formed albite veins and circulated throughout the pegmatite, owing to the development of a network of fractures...alteration that affected the previously formed pegmatite units. In addition, in albite pegmatites, late...direct information on the pegmatite-forming fluids and conditions of pegmatite formation. The coexistence |  | | Report (issue) | | N’Chwaning and Wessels mines in the Kalahari Manganese Field near Kuruman, but Dan’s specimens, which are generally...Trimouns talc mine, Luzenac, Ariège, Midi-Pyrénées, France (see Freddy Marty’s article on this unusual...Trimouns mine, Luzenac, Ariège, Midi-Pyréeées, France. Fabre Minerals specimen and photo. Jordi Fabre’s...Tantalite-(Mn), 6.4 cm, from the Alto do Giz pegmatite, Equador, Rio Grande do Norte, Brazil. The Arkenstone...much larger malachite-coated cuprites from Chessy, France or from the Onganja mine in Namibia—but the little |  | | Journal (article/letter/editorial) | | Austria Nb-Ta-Minerals from the Cap de Creus pegmatite field, eastern Pyrenees: distribution and geochemical...mineralogy facilitate distinction of four main pegmatite types at the eastern end of the Pyrenees. Three...trend, with similar enrichment toward the late pegmatite units; a single-crystal trend, with zoning related...expected for a beryl-columbite pegmatite type. In a single pegmatite, the evolution depends on the simultaneous...group end members and re-equilibria with late pegmatite fluids. Zusammenfassung N b - Ta-Minerale aus |  | Van Lichtervelde, Marieke, Grand’Homme, Alexis, de Saint-Blanquat, Michel, Olivier, Philippe, Gerdes, Axel, Paquette, Jean-Louis, Melgarejo, Joan Carles, Druguet, Elena, Alfonso, Pura (2017) U-Pb geochronology on zircon and columbite-group minerals of the Cap de Creus pegmatites, NE Spain. Mineralogy and Petrology, 111 (1) 1-21 doi:10.1007/s00710-016-0455-1 | Journal (article/letter/editorial) | | the different pegmatitic pulses. In a type III pegmatite where zircon and CGM are co-genetically associated...Toulouse, France 2 ISTerre, Université Grenoble, 1381 Rue de la Piscine, BP 53, 38041 Grenoble, France Introduction...Pascal, CNRS, IRD, BP 10448, 63000 Clermont-Ferrand, France 5 Departament de Cristal·lografia, Mineralogia...as Li M. Van Lichtervelde et al. and the high field strength elements Nb-Ta and Sn (Linnen et al. 2012)...(e.g., Aguilar et al. 2014). The peraluminous pegmatite swarm that crops out in the Cap de Creus area |  | Fuertes-Fuente, M., Martin-Izard, A., Boiron, M. C., Vinuela, J. M. (2000) P T PATH AND FLUID EVOLUTION IN THE FRANQUEIRA GRANITIC PEGMATITE, CENTRAL GALICIA, NORTHWESTERN SPAIN. The Canadian Mineralogist, 38 (5) 1163-1175 doi:10.2113/gscanmin.38.5.1163 | Journal (article/letter/editorial) | | AND FLUID EVOLUTION IN THE FRANQUEIRA GRANITIC PEGMATITE, CENTRAL GALICIA, NORTHWESTERN SPAIN MERCEDES...G2R, BP 23, F–54501 Vandœuvre-lès-Nancy Cedex, France JOSE MANGAS VIÑUELA Departamento de Geología,...metasomatic deposit of gem-quality chrysoberyl, emerald and phenakite. The pegmatite is associated with a two-mica...the P–T conditions of fluid migration in the pegmatite. Three types of fluid inclusions have been identified...this second stage, it formed from phenakite and chrysoberyl in the presence of a CO2- and CH4-rich fluid |  | | Journal (article/letter/editorial) | | DECEMBER 1985, VOL. 49, PP. 733-8 Genesis of chrysoberyl in the pegmatites of southern Kerala, India K...India ABSTRACT. In southern Kerala, India, chrysoberyl occurs in granitic pegmatites in association...aluminium-contamination processes, the genesis of chrysoberyl is explained by the CO 2 activity in residual...genesis of chrysoberyl in Sri Lanka where it is still controversial. KEYWORDS: chrysoberyl, pegmatites...pegmatites, Kerala, India. CHRYSOBERYL is rather rare in granitic pegmatites, though known from those which intrude |  | | Journal (article/letter/editorial) | | in andalusite schist and commonly consist of pegmatite in the centre and of quartz-mica rock at the margins...margins. The nigerite can occur in the pegmatite as well as in the quartz-mica rock; its presence in...quartz-sillimanite rock is also mentioned. In both pegmatite and quartz-mica rock, the common associated translucent...heavy minerals are cassiterite, tourmaline, chrysoberyl, and occasionally andatusite, sillimanite, and...quartz-sillimanite rock are cassiterite and chrysoberyl. Nigerite and cassiterite commonly occur together |  | Beurlen, H., Thomas, R., Melgarejo, J. C., Da Silva, J. M. R., Rhede, D., Soares, D. R., Da Silva, M. R. R. (2013) Chrysoberyl-sillimanite association from the Roncadeira pegmatite, Borborema Province, Brazil: implications for gemstone exploration. Journal of GEOsciences, 58 (2) 79-90 | Journal (article/letter/editorial) | | Original paper Chrysoberyl–sillimanite association from the Roncadeira pegmatite, Borborema Province...author The first occurrence of chrysoberyl in the Borborema Pegmatite Province (BPP) in northeastern...Roncadeira pegmatite, worked in the 1940’s for Sn- and Ta-ore concentrate. The chrysoberyl occurs in tabular...sodic aplite facies of the pegmatite. Along the crystal borders, the chrysoberyl (Cbl) contains commonly...origin of the chrysoberyl by the reaction Beryl + albite + muscovite + H+ = chrysoberyl + quartz + sillimanite |  | | Journal (issue) | | 2023 Articles Minerals of the Espirito Santo Pegmatite District, Eastern Brazil.. ......697 by M. L....................................775 COVER: CHRYSOBERYL sixling twin, 6.3 cm, from ItaguaÇu, Espirito...northeastern region of Minas Gerais looking for pegmatite minerals. Thus, his collection contains almost...be the epitome of quality and rarity in its own field. It would be a sort of “collection of collections”...MINING VENTURES Minerals of the Espirito Santo Pegmatite District Eastern Brazil Mario Luiz de Sá C. Chaves1 |  | | Journal (article/letter/editorial) | | from the Scheibengraben beryl-columbite granitic pegmatite, Maršíkov, Czech Republic MILAN NOVÁK1,*, PETR...beryl-columbite pegmatite at Scheibengraben, Maršíkov, Northern Moravia, Czech Republic. The pegmatite consists...(facilitated by low contents of B, P and Li in the pegmatite melt) very likely maximized such an extensive...differential solubilities of columbite and tantalite in pegmatite melt. The apparent reversal of Nb-Ta and Fe-Mn...and Fe-Mn fractionation paths, beryl-columbite pegmatite, fluorine, Maršíkov, Czech Republic. Introduction |  | | Journal (article/letter/editorial) | | British Columbia V6T 1Z4, Canada Abstract The pegmatite group on the northern slope of Mount Begbie, near...B.C., comprises more than 50 relatively small pegmatite bodies. The pegmatites have diverse ranges of...rare element-bearing silicate minerals (beryl, chrysoberyl, bertrandite, euclase, trilithionite, Li-muscovite...the individual dikes. Fractionation within the pegmatite group increases from the southeast to the northwest...Mn-rich elbaite in a beryl-columbite-phosphate pegmatite, and the relatively common presence of hübnerite |  | | Report (edition) | | ................... 76 vi Chapter 8 Minor pegmatite gemstones 77 Lepidolite.................................. 178 Chapter 16 Chrysoberyl and alexandrite 179 Chrysoberyl minerals............................................................. 179 Chrysoberyl....................................................................................... 179 Chrysoberyl in Western Australia............................................................. 27 3.1 Pegmatite block containing large, pale-green, euhedral beryl |  | | Report (issue) | | chamosite chevkinite-(Ce) chlorargyrite chromite chrysoberyl 24,44,47,58 chrysocolla churchite-(Y) cinnabar...and villains from all over the world, i ncluding France, Holland, Portugal, Great Britain and even the...mineralogy. First Came the Soldiers .... In 1 890 France and Britain signed a treaty del i miting their...already possessed specimens. In par ticular, h is field activity focused on the highlands in the Antsirabe...1 029 kg. The average annual weight was 282 kg. France was the principal customer, but Germany and rantsoa |  | | Journal (article/letter/editorial) | | belt. Another characteristic. lithiumbearing pegmatite procince is lound in the basement rocks o f Zimbabwe...Cassiterite 1. Introduction Although the major granite pegmatite regions of Africa have been known for a long time...demand. The present study reviews the principal pegmatite regions in Africa, where extensive mining of minerals...paid t o the mineralogy and geochemistry of the pegmatite deposits, and in particular t o tin and tantalum...to note that most of the extensive mineralized pegmatite areas so far known are situated south of the equator |  | | Journal (article/letter/editorial) | | Na-Li-Be-rich cordierite from the Murzinka pegmatite field, Middle Urals, Russia ELLA V. SOKOL1,*, YURII...in an Mg-enriched vein of granite pegmatite in the Murzinka field of beryllian granitic pegmatites...granitic pegmatite. Cordierite within the Murzinka pegmatite field is generally restricted to pegmatite veins...Na-Li-Be-rich cordierite found in the Murzinka pegmatite field located in the Middle Ural Mts of Russia. ...species such as beryl, bertrandite, phenakite, and chrysoberyl. This can be explained by the crystal chemistry |  | | Journal (article/letter/editorial) | | UNUSUAL Mn-RICH APATITE FROM THE SZKLARY GRANITIC PEGMATITE, LOWER SILESIA, SOUTHWESTERN POLAND Adam PIECZKA§...Bi and Pb, has been recognized in a granitic pegmatite occurring within serpentinites of the Szklary...Szklary massif in Lower Silesia, Poland. This pegmatite is a representative of the MSREL–REE subclass of the...Szklary is on a level with that from the Cross Lake pegmatite in Canada, considered as the example richest in...tourmaline and fluorapatite, extraction of Mn from pegmatite-forming, H2Oundersaturated, Cl-enriched melts |  | | Journal (article/letter/editorial) | | petrology and geochemistry of the Sebago granite–pegmatite system, southern Maine, USA Michael A. Wise*,...homogeneous, two-mica granite situated in the Oxford pegmatite field, southwestern Maine. Surrounding the pluton...graphic K-feldspar, sodic aplite and potassic pegmatite pods hosting rare tourmaline, beryl and columbite–tantalite...columbite–tantalite. Over 100 granitic pegmatite bodies (Sebago Pegmatite Group – SPG) intrude the outer portions...neighboring granitoids and metasedimentary rocks. The pegmatite population includes mineralogically simple to |  | | Journal (article/letter/editorial) | | the alkalinity regimes. Some of minerals, as chrysoberyl in xenoliths of hornfels, genthelvite and unique...earth in this stone) at the National Institute of France on the 14 February 1798 [1,2]. However, beryl and...emerald, aquamarine, and “chrysoberyl” (golden beryl, not the sensu stricto chrysoberyl), were known from much...and small stocks of tourmaline granites. Six pegmatite fields, comprising Polmostundra, Kolmozero and...10–35 m in thickness. Quartz-albite-microcline pegmatite bodies are extremely enriched in rare element |  | Novák, Milan, Vieira, Romeu, Lima, Alexandre, Škoda, Radek, Martins, Tania, dos Anjos Ribeiro, Maria (2009) Ferronigerite with dominant substitution TiSn−1 in muscovite+chlorite aggregate from massive quartz nodule associated with a petalite-rich aplite-pegmatite of the Barroso-Alvão pegmatite field, Northern Portugal. Neues Jahrbuch für Mineralogie - Abhandlungen, 186 (1) 67-78 doi:10.1127/0077-7757/2009/0132 | Journal (article/letter/editorial) | | with a petalite-rich aplite-pegmatite of the Barroso-Alvão pegmatite field, Northern Portugal Milan Novák...petalite-rich aplite-pegmatite dike Lousas from the Barroso-Alvão pegmatite field. Ferronigerite-6N6S...substitutions, quartz nodule, petalite, aplite-pegmatite, Barroso-Alvão field, Portugal Introduction Nigerite-group...Lousas aplite-pegmatite body intruding metasedimentary rocks, Barroso-Alvão pegmatite field. Grey area –...– aplite-pegmatite body, square – quartz nodule occurrence. b) Schematic description of geological setting |  | Novák, Milan, Cempírek, Jan, Gadas, Petr, Škoda, Radek, Vašinová Galiová, Michaela, Pezzotta, Federico, Groat, Lee A. (2015) Boralsilite and Li, Be-bearing "Boron Mullite" Al8B2Si2O19, Breakdown products of spodumene from the Manjaka pegmatite, Sahatany valley, Madagascar. The Canadian Mineralogist, 53 (2) 357-374 doi:10.3749/canmin.1400092 | Journal (article/letter/editorial) | | BREAKDOWN PRODUCTS OF SPODUMENE FROM THE MANJAKA PEGMATITE, SAHATANY VALLEY, MADAGASCAR MILAN NOVÁK§ Department...elbaite-subtype Manjaka granitic pegmatite, Sahatany Valley, Madagascar. The pegmatite mineral assemblage is relatively...> Ap + several accessory B-rich phases). This pegmatite forms an E–W-trending elongated body emplaced...emplaced in an Mg-rich calc-silicate rock; the pegmatite exocontact locally contains thin reaction zones (Tur+Phl±Brl)...minor extent of exocontact reactions along the pegmatite, and secondary rhodochrosite, are responsible |  | | Journal (issue) | | in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………...paleoclimate controls of lithium-cesium-tantalum (LCT) pegmatite genesis, exhumation, and preservation……………………...earth element mineralization in a rediscovered pegmatite in the Stettin Complex, Wausau Syenite Compley...REIMER, W. Mineralogical study of the Gonçalo Li-pegmatite deposit, Portugal……………………………………..23 FALSTER,...fluorapatite-quartz assemblage in the Emmons pegmatite, Greenwood, Oxford Co., Maine, USA: implication |  | | Journal (article/letter/editorial) | | Topsham, Maine, Pegmatite District Topsham • Topsham, Maine's underappreciated pegmatite district, is...I (Rand, 1957) and Maine Mines and Minerals, a field guide by Phillip Morrill (1958). Mining History...(1780-1858), who described several of Topsham's common pegmatite minerals in his famous textbook (Cieaveland, 1822)...Tales of a Homemade Naturalist (Haven, 1966), the field trip diaries of Portland candymaker and collector...Brookes finding chrysoberyl in 1935, and a Maine Mineralogical and Geo logical Society field trip to Porcupine |  | | Journal (issue) | | SWEDEN 5 Cover 1. Hambeigite. Ranglad 'skoye pegmatite field, E. Pamirs. 8x 4 cm. Specimen:A.M. Skrigitil'...probably, by the geologists' lack of knowledge in the field of jewelry stones. On the basis of the materials...concentrate thus obtained is subjected to so-called field enrichment. This process consists in the extraction...most interesting pegmatites of the Rangkul' pegmatite field are distributed over the area of the Muzkol-Rangkul'...gemstones are distinguished in the Rangkul' pegmatite field. The first type comprises miarolitic pegmatites |  | | Journal (issue) | | Schmetzer 434 Nail-head Spicules as Inclusions in Chrysoberyl from Myanmar By Karl Schmetzer and Michael S...Washington, USA; Emmanuel Fritsch, University of Nantes, France; Rui Galopim de Carvalho, Portugal Gemas, Lisbon...almost 30 kg. It was mined in 1998 from the Urucum pegmatite in Brazil. Photo by B. M. Laurs. (1962, p. 287)...References Cassedanne J.P., 1986. The Urucum pegmatite, Minas Gerais, Brazil. Mineralogical Record, 17...portion of the Berry-Havey pegmatite, which belongs to the Oxford pegmatite field in southern Maine. According |
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