 | | Journal (issue) | | SEPTEMBER–OCTOBER 2019 Articles The Golconda District, Minas Gerais, Brazil ..........................................TOURMALINE, 11.9 cm, from the Golconda I mine, Minas Gerais, Brazil Brice Gobin (Mineral Art) and Emanuele Marini...China, South Africa, Namibia, Chile, Peru, Bolivia, Brazil and Mexico. His first exchange of specimens with...September–October, 2019 The Golconda District Minas Gerais, Brazil Carlos Cornejo1 Andrea Bartorelli2 Wendell...important specimen-producing districts in all of Brazil. INTRODUCTION The Golconda Pegmatite Field is a |  | Bermanec, V., Horvat, M., Zigovecki GOBAC, Z., Zebec, V., Scholz, R., Skoda, R., Wegner, R., Brito Barreto, S. d., Dodony, I. (2012) Pseudomorphs of Low Microcline After Adularia Fourlings from the Alto Da Cabeca (Boqueirao) and Morro Redondo Pegmatites, Brazil. The Canadian Mineralogist, 50 (4) 975-987 doi:10.3749/canmin.50.4.975 | Journal (article/letter/editorial) | | CABEÇA (BOQUEIRÃO) AND MORRO REDONDO PEGMATITES, BRAZIL Vladimir BERMANEC§ Institute of Mineralogy and...Preto, Campus do Morro do Cruzeiro, Ouro Preto, MG, Brazil Radek ŠKODA Institute of Geological Sciences,...882 – Bodocongó, Campina Grande, PB, 58109.970 Brazil Sandra de BRITO BARRETO Department of Geology...Acad. Hélio Ramos s.n., 54740-530, Recife, PE, Brazil István DÓDONY Eötvös Loránd University, Department...BQ) and the Morro Redondo, Minas Gerais (sample MR) pegmatites in Brazil have a typical adularia fourling |  | | Journal (article/letter/editorial) | | quartz and zabuyelite. Other minerals such as cookeite, calcite, a cesium-rich phase, apatite and several...assemblage of daughter crystals comprising albite, cookeite, pollucite–analcime, quartz and diomignite (Li2B4O7)...calculate the Cp(T) coefficients for spodumene and cookeite. The density of Li2CO3 as a function of temperature...minerals that yielded Raman signals: these are cookeite, apatite, and three different unidentified minerals... Aluminosilicates such as cesian analcime and cookeite occur sporadically (see Raman and SEM–EDS 1513 |  | | Catalog/List | | Compared to the output of place such as Afghanistan or Brazil, the production from Elba is relatively small....59 BRAZIL 73060 TOPAZ var. IMPERIAL TOPAZ Ouro Preto, Iron Quadrangle, Minas Gerais, Brazil This specimen...var. ROSE QUARTZ Galiléia, Doce Valley, Minas Gerais, Brazil Here is a cockscomb arrangement of Rose...Itatiaia mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil This rather sizable, pale blue-green Aquamarine... 73063 RHODONITE Conselheiro Lafaiete, Minas Gerais, Brazil Here sharp rosy crystals up to 1.33 inches |  | | Journal (issue) | | TRINCHILLO TOURMALINE WITH LEPIDOLITE Cruzeiro Mine, Brazil 16 cm | w w w.FineMineral.com MINERALS C...needed to remove surficial crusts and stains, e.g. cookeite crusts from elbaite; iron stains from microcline;...repaired elbaite crystal from the Pederneira mine, Brazil, that is in the Carnegie Museum of Natural History...Fluorapatite, 3.5-cm doubly terminated crystal on cookeite-covered matrix, 8 cm, from the Pulsifer quarry...from the Cruzeiro mine, São José da Safira, Minas Gerais, Brazil. Mim #2110, acquired in 2019; this is a |
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Araçuaí, Minas Gerais, Brazil