 | | Journal (article/letter/editorial) | | quartz crystal geology and the supply situation in Brazil. The information contained in this article has...the geologists and mining engineersemployed in Brazil by the Foreign Economic Administration, to whom...Administration, Washington, D. C. Rio de Janeiro, Brazil. 245 246 R. E. STOIBER,C. TOLMAN, R. D. BUTLER...is used in the U. S. comes almost entirely from Brazil. Deposits are known and worked in USSR1 and small...production has been very small from sourcesother than Brazil, it has had no appreciable efiect on the overall |  | | Book | | several tons each are known from pegmatites in Brazil and Madagascar as weil as from Alpine type veins...dispersed on our planet and particularly deposits in Brazil and Madagascar are famous and researched in detail;...and ilmenite, and syngenetic ilmenite, rutile, anatase, brookite, titanite, tourmaline, pyrrhotite, pyrite...inclusions. l n Brazil quartz veins and Alpine type veins are particularly known from Minas Gerais, Bahia and...cm. Above. Unknown white fibres in quartz from Brazil. Height 4.5 cm. Oben links. Arsenopyrit im Quarz |  | | Journal (issue) | | epidote deposits of the Capelinha Region, Minas Gerais, Brazil ......................................315...epidote on matrix, 4.4 cm, from Capelinha, Minas Gerais, Brazil. Gail and Jim Spann collection; Tom Spann...w. FineMineral.com Tourmaline Cruzeiro Mine, Brazil. 19.5 cm Fine Minerals International proudly invites...EPIDOTE DEPOSITS OF THE CAPELINHA REGION, MINAS GERAIS, BRAZIL Andrea Bartorelli1 Carlos Cornejo2 Mario...mid-1960s, the Capelinha region in the State of Minas Gerais, Brazil, has become world-famous for producing beautiful |  | | Journal (issue) | | . • • • • • • • • • • I 5.00 Rutilated Quarts, Brazil. 3 x 2 ½ x I . Polished curved face. Plus tax •.... . . . . . . . . . . . 2.00 Quarts w Phantom, Brazil. Fine green phantom in xi. 3 x 2 ¼ . . . . . ....Evelyn Waite ..................116 QUAR1Z CRYSTAL IN BRAZIL .....................................................................118 SEMIPRECIOUS STONES IN BRAZIL .................................................MAGNETIC PROSPECTING ...............•124 MICA IN BRAZIL .............................................. |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Journal (issue) | | points or druses. Bahia and Rio Grande do Sul, Brazil, are by far the most well known localities for...be the presence Amethyst with included goethite Brazil of minute amounts of aluminum along with natuDenise...passed off as citrine. Citrine localities include Brazil, Russia, and Madagascar. Ametrine is an unusual...they are known in Newry, Maine, USA and Minas Gerais, Brazil. 9 THE BACKBENDER'S GAZETTE JUNE 2007...Hardangervidda, Norway, is known for its spectacular anatase crystals which can be embedded on and in rock |  | | Journal (issue) | | und Qualität, die fast sogar die Turmaline aus Minas Gerais, Brasilien, übertrafen. Die typischste Farbe...sich im Juni 2006 bei Diamantina im Bundesstaat Minas Gerais, Brasilien (HYRSL 2007) . Es handelt sich um...Ankangit-Einschlüssen (siehe weiter unten) aus dem nördlichen Minas Gerais. Jamesonit ist jünger als Ankangit und kristallisierte...europäischen Vorkommen bekannt ist. Auf den Flächen der Anatase sind gelbe RutilNadeln bis zu 1,5 cm Länge aufgewachsen...Quarzgänge zwischen Corinto, Curvelo und Diamantina im nördlichen Minas Gerais, Brasilien, handelt. Ankangit |  | | Conference Proceedings | | (1983); Sydney, Australia (1985); Rio de Janeiro, Brazil (1987), Tremezzo, Italy (1989); Stellenboch (1991)...including Australia, Austria, Bahrein, Belgium, Brazil, Canada, China, Czech Republic, Denmark, Dubai...Santiago and Jurgen Schnellrath : Cat’s eye opal from Brazil: A second look. 14:20 – 14:40 Alessandra Costanzo...Zampaulo: unusual corundum (ruby) bearing rocks from Brazil and India 12 36 th IGC 2019 – Nantes, France...IGC 2019 – Nantes, France CAT’S EYE OPALS FROM BRAZIL: A SECOND LOOK Carolina Santiago¹ and Jurgen Schnellrath² |
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