 | | Journal (issue) | | every available country of occurrence— Russia, Brazil, Australia, Ceylon, Nigeria and the United States...(N. Deane) received a letter from the other from Brazil, stating that he was sending a piece of potentially...had examined the material, and found it to be Amblygonite, composition ( L i N a ) A l ( P 0 4 ) F , O...places in which it was found was Mogi das Cruzes, Sao Paulo, Brazil. T h e spectrum showed a very vague...cleavage planes (as does spodumene), although amblygonite is stated to have an excellent cleavage. Grinding |  | | Book (edition) | | than the other. A good example is the case of amblygonite: (Li, Na)Al(PO4)(F, OH). Analyses have shown...Most gems cut from members of this series are amblygonite. But many stones have been discussed in the literature...species designation for many gems now labeled amblygonite in collections. A much greater awareness of the...from the weathering of such rocks. discovered in Brazil. Usually, however, a new mineral is recognized...cases this determines the species! For example, amblygonite is (Li , Na),~(PO4)(F, OH). But if the fo rmula |  | | Book (edition) | | example is ORIGIN OF GEMSTONES the case of amblygonite: (Li, Na)Al(PO.,)(F OH). Analy- shown that complete...belonging to gonite. However, literature as amblygonite, montebrasite! Montebrasite is not discussed...species designation for many gems now labeled amblygonite in collections. A much greater awareness of ... it of mineral species to the discovered in Brazil. Usually, however, a recognized only with great...site. determines the species! For example, amblygonite is (Li,Na)Al(P0 4 )(F,OH). However, if the formula |  | | Book (edition) | | ft) thick at Urubu, near Araçuai, Minas Gerais, Brazil. Fine pink and green gem-quality tourmaline has...acid members of the volcanic province in southern Brazil and Uruguay, and the fire opals occurring in small...amethyst from volcanic rocks in Rio Grande do Sul, Brazil. The amethyst crystals are more strongly coloured...sands containing diamonds near Sopa, Minas Gerais, Brazil The above discussion has concentrated on clastic...worldwide but some of the most important are in Brazil, where the gem-quality deposits are associated |  | Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York. | Book (volume) | | near Marienbad, Bohemia. Possibly occurs with amblygonite at Montana de Cdceres, Estremadura, Spain. A...crystals occur in pegmatite at Bom Jesus dos Meiras, Brazil. Huge deposits of stratified, coarsely crystalline...Ulster County, New York; Hill, Roxbury, Connecticut. Brazil. and in talcose slate at Plymouth, Windsor County...Queluz district and at Miguel Burnier, Minas Geraes, Brazil, and at Casapalca, Peru. In Catamarca and la Rioja...and in metallic veins in Cornwall. As large In Brazil at the Morro Velho gold clear crystals near Djelfa |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Ethiopia, G Page 12: Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California...mine. Edwards. St. blue masses at Brumado Bahia, Brazil. At SchneeLawrenceco.. NewYork.andon LakeHarbour...Germany. ~n Au veins_at Mo1To Velho. Minas Gerais, Brazil. With tourmaline, muscovite-fuchsite,apatite. etc |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical Museum, Harvard...Wokitecas eel TMPS Tia VER YUC ZAC States, Brazil Acre Alagoas Amapa Amazonas Bahia Ceara Para...RN RS Rondonia RO Roraima Santa Catarina Sao Paulo Sergipe Tocantins RR SC SP SE TO 11. AUTHORSHIP...Course, Vol. 1 Marine Geology Memorias da Academia das Ciencias de Lisboa, Classe de Ciencias I Mineralium... and Ecuador; Morro Velho mine, Nova Lima, MG, Brazil. sm DI:90, R:321, P&J:281, ABI:189, MR 13:323(1982) |
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