 | | Journal (article/letter/editorial) | | from rare-element pegmatites in the Borborema Province of Brazil Robert B. Trumbull a,⁎, Hartmut Beurlen...1 barren pegmatite in the Borborema Pegmatite Province of NE Brazil, and also from a leucogranite considered...major-element composition varies systematically from schorl–dravite in the border and wall zones to varicolored...supposed a continuous variation in Li contents from schorl–dravite to elbaite but the SIMS data instead show... The barren pegmatite and leucogranite contain schorl–dravite only. The full range of δ11B values in |  | | Journal (article/letter/editorial) | | trace-element data on quartz from the Borborema Pegmatite Province, northeast Brazil H. BEURLEN1,*, A. MÜLLER2,...rare-element class from the Borborema Pegmatite Province in northeast Brazil were analysed for fourteen...granitic pegmatites from the Borborema Pegmatite Province (BPP) in northeast Brazil have been determined...geochemical and mineral exploration purposes in the province. The study was motivated by the observation that...of the Borborema Pegmatite Province The pegmatites of the Borborema province crop out over an area of approximately |  | Beurlen, H., de Moura, O. J. M., Soares, D. R., Da Silva, M. R. R., Rhede, D. (2011) Geochemical and geological controls on the genesis of gem-quality "Paraiba Tourmaline" in granitic pegmatites from northeastern Brazil. The Canadian Mineralogist, 49 (1) 277-300 doi:10.3749/canmin.49.1.277 | Journal (article/letter/editorial) | | granitic pegmatites of the Borborema Pegmatitic Province (BPP). These PT-bearing pegmatites are rich in...copper, electron-microprobe analyses, Borborema Province, Brazil. § E-mail address: beurlen@ufpe.br ...granitiques zonées et fortement évoluées de la province pegmatitique de Borborema. Ces pegmatites sont...couleur, cuivre, données de microsonde électronique, province de Borborema, Brésil. Introduction The “neon”...famous mineral product of the Borborema Pegmatite Province (BPP), in northeastern Brazil. Despite its importance |  | Andrade, M. B., Atencio, D., Filho, L. A. D. M., Ellena, J. (2011) TThe structure of a microlite-group mineral with a formula near NaCaTa2O6F from the Morro Rendondo Mine, Coronel Murta, Minas Gerais. The Canadian Mineralogist, 49 (2) 615-621 doi:10.3749/canmin.49.2.615 | Journal (article/letter/editorial) | | A FORMULA NEAR NaCaTa2O6F FROM THE MORRO REDONDO MINE, CORONEL MURTA, MINAS GERAIS, BRAZIL Marcelo B....a formula near NaCaTa2O6F from the Morro Redondo mine, Coronel Murta, Minas Gerais, Brazil. On the basis...une formule voisine de NaCaTa2O6F, provenant de la mine Morro Redondo, Coronel Murta, Minas Gerais, Brésil...a microlite-group mineral from the Morro Redondo mine. Pyrochlore-supergroup minerals have been studied...in the northern part of the Oriental Pegmatite Province of Minas Gerais (that extends 320 km east to west |  | | Journal (article/letter/editorial) | | (2000) COMPLEXLY ZONED FIBROUS TOURMALINE, CRUZEIRO MINE, MINAS GERAIS, BRAZIL: A RECORD OF EVOLVING MAGMATIC...with a deep pink elbaite host from the Cruzeiro mine, Minas Gerais, Brazil, provide evidence for the...generation varies from Fe-rich elbaite to Li-rich schorl, and the third generation is a yellowish-green...indistinguishable from the second-generation Li-rich schorl fibers. Textural and compositional discontinuities...pegmatite. The composition was reset to a Li-rich schorl during late-phase fracturing. Crystal-chemical |  | | Book (chapter) | | verdâtre = chlorite, de Fourestier 346 (1999). talc schorl = kyanite, Bukanov 187 (2006). talc spar = magnesite...oxide = unknown, Dana 7th I, 593 (1944). titanic schorl = rutile, Thrush 1146 (1968). titanic siliceous...Titanschörl = rutile, Haditsch & Maus 220 (1974). titan schorl = rutile, Egleston 297 (1892). titánsörl = rutile...551 (1892). tourmaline cylindrique = elbaite or schorl ?, de Fourestier 357 (1999). tourmaline garnet...tourmaline noire = schorl, Novitzky 29 (1951). tourmaline ou basalte transparent = schorl, Dana 6th, 551 |  | | Journal (article/letter/editorial) | | consideraciones son también aplicables a granitoides con turmalina en otros contextos geotectónicos, complementando...relación Mg/(Mg + Fe) y el contenido en Ti de la turmalina, que se modifican claramente a medida que cambia...que las características composicionales de la turmalina pueden utilizarse como indicadores del grado de...granito en que se encuentran. Palabras Clave Turmalina · Rocas graníticas · Indicador petrogenético ·...granite-hosted tourmalines used in this study (Table 2) have schorl compositions, with only a few analyses overlapping |  | | Journal (article/letter/editorial) | | miscible solidsolutionseries:schorl-draviteand schorl-elbaite. dravite and elbaite (Deer et al., 1962)...described in terms of their position in the elbaite-schorl series or in the schorldravite series. Nonetheless...There is no reliance on a Alkali-free Dravite tT Schorl Buergerite ti^^ 1, ofo a' a a ai' t.t 'rt...Liddicoatite \o o ,( ^oo o 6; s oo o o3 8 a Schorl Buergerite ,{T l-b. 'i .5 I ! 4t I t !l ...inferred if the tourmaline composition falls below the schorl-dravite line i.e. Fe3* is a likely major substituent |  | | Journal (article/letter/editorial) | | (ortosa), mica muscovítica y fenocristales de turmalina. Eri cuanto a los esquistos, la roca más abundante...En este último caso se observan pegmatitas con turmalina muy abundante, dentro de una lnasa constituída...expuesto es lo que se conoce con el nombre de "schorl" que aparece en este ambiente, en las partes periféricas |  | | Journal (article/letter/editorial) | | 2008). This binary diagram projects the dravite and schorl end members to the same point along the povondraite–“oxy-dravite”...is compositionally distinct, i.e. elbaite–schorl and schorl-rich varieties (de Oliveira et al. 2002)....Navarro MS, Mota AA (2009) Composição química da turmalina de turmalinitos estratiformes da mina de Passagem...variations in tourmaline of Passagem de Mariana gold mine, Quadrilátero Ferrífero, Minas Gerais, Brazil. Acta...garnet-rich rocks in the southern Proterozoic Curnamona Province, Australia: an indicator of the premetamorphic |  | Garda, G.M., Trumbull, R.B., Beljavskis, P., Wiedenbeck, M. (2009) Boron isotope composition of tourmalinite and vein tourmalines associated with gold mineralization, Serra do Itaberaba Group, central Ribeira Belt, SE Brazil. Chemical Geology, 264 (1) 207-220 doi:10.1016/j.chemgeo.2009.03.013 | Journal (article/letter/editorial) | | segment of the Neoproterozoic Mantiqueira Crustal Province (da Silva et al., 2005) in the eastern part of...207–220 of São Paulo city (Fig. 1). The Mantiqueira Province includes a structurally and lithologically complex...The main geologic features of the Mantiqueira province formed during the Brasiliano/Pan African orogenic...Silva et al., 2005). The central part of this province is commonly referred to as the Ribeira Belt, and...Ribeira Belt and other parts of the Mantiqueira Province (Juliani et al., 1986; Juliani, 1993; Juliani |  | | Journal (issue) | | rubellite crystal, 75 mm long, from the Cruzeiro mine, Minas Gérais, Brazil. See 'The location, geology...muscovite and milky quartz with some lepidolite, schorl and locally huge tabular crystals of spodumene...producing tourmaline is the 'Eastern pegmatitic province' of Minas Gerais. One general and three detailed...Non-pegmatitic deposits of tourmaline include the Brumado mine (Bahia) which produces fine red uvite crystals and...Laranjeira mine (Coronel Murta). Fig. 5. Trichites in a cut rubellite from the Laranjeira mine (Coronel |  | Trumbull, R. B., Garda, G. M., Xavier, R. P., Cavalcanti, J. A. D., Codeço, M. S. (2019) Tourmaline in the Passagem de Mariana gold deposit (Brazil) revisited: major-element, trace-element and B-isotope constraints on metallogenesis. Mineralium Deposita, 54 (3) 395-414 doi:10.1007/s00126-018-0819-z | Journal (article/letter/editorial) | | (2014) and Dorr (1969). The Passagem de Mariana mine is located in the SE corner of the map, marked by...Quadrilátero Ferrífero is a world class metallogenic province located in the southern border of the São Francisco...of mining in the late seventeenth century until mine closure in 1985. The average gold grade in mineralized...quartz veins with tourmalinite selvages exposed in mine pillars b a 2m 2m a b 20 cm Legend Dolomite...reference materials dravite (HS no. 108796) and schorl (HS no. 112566) from the Harvard Mineralogical |  | | Thesis/Dissertation | | pegmatites from the South Norwegian pegmatite province ............................... 45 Ramfoss pegmatite...Magnesio-foitite: (Werding & Schreyer, 1984). 3) Schorl: (Holtz & Johannes, 1991). 4) Dravite: (Krosse... 29 Figure 6-1 - The Sveconorwegian pegmatite province and location of the studied pegmatites (stars)...pegmatite districts of the Sveconorwegian pegmatite province are framed by blue lines: 1- Mandal; 2- Setesdal;...intermediate zone exposed in the wall of the eastern mine. ......................... 66 Figure 8-4 - Lithologies |  | | Journal (issue) | | | w w w. FineMineral.com Tourmaline Cruzeiro Mine, Brazil. 19.5 cm Fine Minerals International proudly...greenmountainminerals.com BA R I T E 12 X 8” Parkside Mine, Frizington Copeland, Cumbria, England, UK Photo...Ipatinga; GN, Guanhães. Road numbers are in blue. Province. It can be reached via an eastern and a western...gems and minerals belong to the Eastern Pegmatite Province, and are located within a radius of about 50 km...specular hematite. In the bed of the access road to the mine, which descends the scarp of the Neogene plateau |  | | Journal (issue) | | NE of the Sandawana mine, along the Mweza Range, which is named 'Machingwe' mine, after a nearby stream...The Machingwe Emerald mine The car journey from Masvingo to the Mashingwe mine takes about 3l/z hours...for the mine became 'Machingwe Syndicate No. No.22 Mine', but is better known under the name Mine: Machingwe...Machingwe mine. At the time of the first author's visit to the mine -S striking, the No. No.11 shaft shaft...mining based on very simple methods at the time the mine was visited, but also the plant and the treatment |  | | Book | | 2013). MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...northwest of the first, he collected good specimens of schorl and of ilmenite, the latter as unaltered and partially...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the |  | | Journal (issue) | | located 31.5 km south of the city of Wroclaw in the province of Dolny Slask (Lower southwest Poland (Figure...event which constitutes a diamondiferous alkaline province in NE North America. RAH. Luminescences sous...evidence for a Cambrian diamondiferous alkaline province in northeastern North America. S. DIGONNET, N...Gems & Gemology, 37(1), 2001, 26-41. The Argyle mine in north-western Australia was established in 1983...as 'champagne' and 'cognac' diamonds. The Argyle mine is also noted for the production of a very limited |  | | Journal (issue) | | 27 No. 6 April 2001 Hte long sein Gemstoncs of Peru Gem quality clinohumite Colour of diamonds The... Gemstones of Peru Dr Jaroslav Hyršl Kolin, Czech Republic ABSTRACT: Gem and ornamental stones from Peru are described...gemstones, Peru, pink opal Introduction A 323 lthough it has a long history of gemstone use, Peru is a country...The most interesting recent gemstone produced in Peru and used in local jewellery for at least 25 years...which are said to be very close to the chrysocolla mine (see p.330). The RI of the pink opal is 1.45 1.49 |  | | Journal (issue) | | Cd-bearing phosphate mineral from the Gold Quarry mine, Eureka County, Nevada . . . . . . . . . . . . ...crystal cluster, 7.3 cm, from near Bapu, Guangdong Province, China. Rob Lavinsky specimen, now in the Tom...recovered from the dumps of this small mine. Local collectors reworked the mine dumps many times in search of...about 325 meters southwest of the Bishop manganese mine. The locality was early on referred to as a “copper...spatially distinct from the nearby Bishop manganese mine. The dumps do not contain significant manganese |  | | Journal (issue) | | albite and lepidolite, mined recently at the Himalaya mine, Pala, California. William Larson collection; photo... 6, p. 461-474.]* The reopening of the Himalaya mine (by D. Eidahl) [1977, vol. 8, no. 6, p. 475.]* The...298-299.] * More on rubellite from the Itatiaia mine, Brazil (by P. C. Keller) [1979, vol. 10, no. 1...33-34.]* Famous mineral localities: the Cruzeiro mine [Minas Gerais, Brazil] (by J. P. and J. O. Cassedanne...Ali Akbar Dehkoda Loghat-nama, 1955, Teheran) SCHORL The early mining literature of central Europe mentions |  | | Book | | b} (of Chesnokov) calcium iron oxide from burning mine dump Acid Aluminium Phosphate = (of Marchand) inadequately...Chesnokov) calcium chloro-oxy-silicate from burning mine dump Afanerita, Afonesa, Afanesite, Afanezit, Afonite...African Queen = Quartz [Jasper) Africita = altered Schorl? (Tourmaline] Afrikaiberill = Fluorite Afrikaijade...= Aragonite pseudomorph after Gypsum Afrizit = Schorl Afrocalcita = Tyrolite Afrodina = Copper Afrodite...Aimant = Magnetite [Lodestone] Aimant de Ceylon = Schorl? Aimantine = Magnetite (Lodestone] = Hematolite |  | | Journal (issue) | | on amethyst, citrine, and ametrine from the Anahí mine, Bolivia • “Copal” resin from Madagascar • Iolite...Harold & Erica Van Pelt. briefly visited the Mulungu mine near Parelhas (figure 2) in neighboring Rio Grande...gem pegmatite areas in the Borborema geologic province of northeastern Brazil. Some of these pegmatites...Batalha (located 4.5 km north of Salgadinho). The mine is situated on a small steep-sided hill known as...Boqueirãozinho, or CDM mine) and Alto dos Quintos mines (also known as the Wild mine), the area of gem pegmatite |  | | Report (volume) | | assemblages 376 Tourmaline stability in magmas: Schorl-dravite 377 Acknowledgments 379 References 379...salar deposits in the Andes of Argentina, Chile and Peru; and (4) marine evaporites, the largest of which...Russian Far East, and Mg-Fe borates in the Liaoning Province, China. In compiling the Table, whenever possible...for the Early Proterozoic deposit in Liaoning Province, China is that the deposit formed by metamorphism...pentaborate sheet structure from the Tuzla salt mine, Bosnia and Hercegovina. Am Mineral 79:562-569 Beukes | | | Report (volume) | | assemblages...... Tourmaline stability in magmas: Schorl-dravite ..................2..0008 Bare MOW COPIES...salar deposits in the Andes of Argentina, Chile and Peru; and (4) marine evaporites, the largest of which...Russian Far East, and Mg-Fe borates in the Liaoning Province, China. In compiling the Table, whenever possible...for the Early Proterozoic deposit in Liaoning Province, China is that the deposit formed by metamorphism...pentaborate sheet structure from the Tuzla salt mine, Bosnia and Hercegovina. Am Mineral 79:562-569 Beukes |
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