| | Journal (article/letter/editorial) | MAY 1945 SIMPSONITE AND THE NORTHERN BRAZILIAN PEGMATITE REGION BY FREDERICK H. POUGH CONTENTS Page 505...and acknowledgments General description of the Alto do Giz Mineralogy Simpsonite Microlite Tantalite and...ILLUSTRATIONS Figure 1.âTypical tabular yellow-brown Alto do Giz simpsonite crystal 2.âMinute tabular, buff-colored...fragment from Onca Mine Plate 1.âSimpsonite 2.âAlto do Giz 3.âKaolinite replacements 4.âMicrolite and cyrtolite...ABSTRACT A study of the Alto do Giz, near Equador, Rio Grande do Norte, Brazil, reveals an interesting | | | Report (issue) | corresponding to AIl.OOTao.98Sno.o204' (3) Alto do Giz pegmatite, Brazil; by electron microprobe, corresponding...natrotantite, microlite, cesstibtantite, sosedkoite, albite (Kola Peninsula, Russia); simpsonite, manganoan...tapiolite, manganotantalite, zirconian hafnon, apatite, albite, muscovite (Bikita, Zimbabwe); simpsonite, manganotantalite...parabariomicrolite (Alto do Giz pegmatite, Brazil). Association: From an undisclosed locality [Leshaia pegmatite, Vuoriyarvi...Zimbabwe. From the Alto do Giz pegmatite, near Parelhas, Rio Grande do Norte, Brazil. Distribution: Name: | | | Journal (article/letter/editorial) | Tantalite-(Mn) from the Borborema Pegmatite Province, northeastern Brazil: conditions of formation and meltand...tantalite-(Mn) from the Alto do Giz pegmatite in the Borborema Pegmatite Province, northeastern Brazil were investigated...crystals. The results demonstrate that in the Alto do Giz pegmatite, water- and alkaline carbonate-rich fluids...Federal de Pernambuco, 50740-530 Recife, Pernambuco, Brazil alkaline carbonate-rich fluids and melts necessary...crystallized during pegmatite formation, this mechanism must also have implications for pegmatite genesis in general | | | Report (issue) | (Ta3.81 Nb0.19 )ÎŁ=4.00 O10.75 . (2) Alto do Giz pegmatite, Brazil; by electron microprobe, corresponding...)ÎŁ=4.00 O10.54 . (3) Na2 Ta4 O11 . Occurrence: In albite units of granite pegmatites. Association: Simpsonite...Peninsula, Russia. At the Alto do Giz pegmatite, near Parelhas, Rio Grande do Norte, Brazil. Name: For sodium | | | Journal (issue) | Manganotantalite from the Alto do Giz area, Equador, Rio Grande do Norte, Brazil . . . . . . . . . . . ... Guest Editorial Collection Disposal What to do with oneâs mineral collection now that the golden...particular aesthetic, and probably many others that do not immediately come to mind. Selling or giving to...available for purchase, but no funds with which to do so. 2. Excellent display-type collection offered...pictured in every issue before it goes to pressâto do so would require us to have a Private Investigator | | | Report (issue) | )ÎŁ=0.94 (Ta1.63 Nb0.37 )ÎŁ=2.00 O8 . (2) Tanco pegmatite, Canada; by electron microprobe, total Fe as Fe2...complex zoned pegmatite in amphibolite (Tanco pegmatite, Canada). Association: Tantalite, albite, quartz,...Australia); tapiolite, microlite, microcline, albite, mica (Tanco pegmatite, Canada). Distribution: A few localities...Greenbushes, Western Australia. An ore in the Tanco pegmatite, Bernic Lake, and elsewhere in Manitoba, Canada... Middlesex Co., Connecticut; in the Herbb #2 pegmatite, six km northeast of Flat Rock, Powhatan Co., | | | Report (issue) | 5.0930(9) Z = 4 X-ray Powder Pattern: Salinas, Brazil. 2.99 (10), 3.69 (9), 2.41 (7), 1.738 (7), 1.483...pegmatites; detrital in placers. Association: [Albite, microcline, beryl, lepidolite, muscovite, tourmaline...Facciatoia, Elba, Italy. In the Zambesia, Tete, and Alto Ligonha districts, Mozambique. From Bikita, Zimbabwe... In Brazil, from Salinas, Minas Gerais, and the Alto do Giz pegmatite, near Parelhas, Rio Grande do Norte...Norte. At Stak Nala, Gilgit district, Pakistan. From Wodgina, Greenbushes, and on Mt. Holland, Western | | Palinkas, S. S., Wegner, R., Cobic, A., Palinkas, L. A., De Brito Barreto, S., Vaczi, T., Bermanec, V. (2014) The role of magmatic and hydrothermal processes in the evolution of Be-bearing pegmatites: Evidence from beryl and its breakdown products. American Mineralogist, 99 (2) 424-432 doi:10.2138/am.2014.4500 | Journal (article/letter/editorial) | Federal de Campina Grande, Av. AprĂgio Veloso, 882, BodocongĂł, Campina Grande, PB, Brazil 3 Department of...S/N. 5 andar., Cidade UniversitĂĄria, Recife, PE, Brazil 4 Department of Mineralogy, Eötvös LorĂĄnd University...Mina do Santino and the JacĂș pegmatites in the Borborema Pegmatite Province in northeastern Brazil contain...and the presence of CH4. Keywords: Mina do Santino, JacĂș pegmatite, beryl, euclase, bertrandite, kaolinite...systems. At the Mina do Santino and JacĂș pegmatites in the Borborema Pegmatite Province (BPP) in northeastern | | | Book | BARTORELLI ::âą . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title | | | Journal (issue) | Dudas labelled as tantalite from Richterveld pegmatite, Namaqualand, Northern Cape Province, Republic...it up on the Internet, but failed to remember to do either. The third error which also changes the meaning...versing letters. which apparentl y is quite easy to do considering I first typed "reserving letters" when...Governador Valadares, Minas Gerais, Brazil. This very famous pegmatite produced a scale of REEbearing minerals...ferrotapiolite is a new mineral for Brazil. The manganotantalite is reported in Brazil from Salinas, Minas Gerais | | | Journal (article/letter/editorial) | questionable species related to romeÌite from Tripuhy (Brazil), is compared to that of pyrochlore. A wide range...for the sample from the type locality Tripuhy (Brazil) corresponds to titanian romeÌite. Pyrochlore-related...detector crystals were used: wollastonite (Ca-Ka/PET), albite (Na-Ka/TAP, Al-Ka/TAP), valentinite (Sb-La/PET)...(13) Grain n° 1 from Tripuhy, Brazil. (14) Grain n° 2 from Tripuhy, Brazil. (15) RomeÌite from Massiac...replacement textures Tripuhy At Tripuhy (Minas Gerais, Brazil) mica schists grading into hematite schists (of | | | Journal (article/letter/editorial) | data obtained from melt inclusions primarily in pegmatite quartz we have shown in this, and previous papers...system. This provides important evidence that pegmatite-forming processes have already begun at high temperatures...constraints of its own, so drawing conclusions about pegmatite-forming processes from data gained from slightly...Thomas at al. (2000) demonstrated for T the pegmatite-granite system from Ehrenfriedersdorf, Erzgebirge...However, an analysis of the inclusion diversity in pegmatite quartz clearly shows a vapor phase can also coexist | | | Catalog/List | In the early 1980s Rock began to concentrate on Brazil and Peru with occasional trips to Uruguay, Chile...Another was the 7,500+ quartz in Minas Gerais, Brazil: a micromount collection. And of course, there..............................................196 Brazil..................................................knows what the lust for Red Cloud Wulfenites can do? Every time the place gets âworkedâ the story is...friends with in the old folks home. Do you feel lucky, punk? Well, do you? Overall Measurements: 1.6 x 1 | | | Book | another oxide, "yttria", from minerals found in the pegmatite at Ytterby, Sweden. Both supposed oxides were...Swedish ehernist Ekeberg in the eourse of analyzing pegmatite minerals from Ytterby, Sweden and Kimito, Finland...minerals from the same loeality, the farnaus pegmatite at Ytterby, Swcden. This faet stresses the geoehemieal...themselves. Then, why and under which conditions do they fractionate? Understanding the fractionation...(with 3 Figures) . . 189 Characteristics of Pegmatite Deposits of Tantalum. P. Cerny (with 18 Figures) | | | Book (volume) | and Peng Wenshi (1982). However, these publications do not contain any analytical data for reference samples...yegorovite Na4[Si2O4(OH)2]2·7H2O from the Palitra pegmatite, Lovozero massif, Kola peninsula hydrated proton)...synthetic analogue of hydroniumjarosite because they do not conform to R-3 m symmetry. In IR spectrum of...Locality: Ampanodiana North pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune... Locality: Ministerskaya Yama Pit, Sarapulka pegmatite field (near Sarapulka village), Murzinka district | | | Book (edition) | the simple expositions given in Practical Gemmology do not now cover the subject adequately and a new book...to crystallize around local centres. The first to do so are those that form at the highest temperatures...Very coarse pegmatite at least 8 m (26 ft) thick at Urubu, near Araçuai, Minas Gerais, Brazil. Fine pink...and elsewhere are famous for carrying gold, and pegmatite veins may contain minerals with rare elements...acid members of the volcanic province in southern Brazil and Uruguay, and the fire opals occurring in small |
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