| | Catalog/List | Compared to the output of place such as Afghanistan or Brazil, the production from Elba is relatively small....inches (5.1 cm) in length rising from a matrix of Albite and colorless Quartz crystals along with a few...59 BRAZIL 73060 TOPAZ var. IMPERIAL TOPAZ Ouro Preto, Iron Quadrangle, Minas Gerais, Brazil This specimen...73061 QUARTZ var. ROSE QUARTZ Galiléia, Doce Valley, Minas Gerais, Brazil Here is a cockscomb arrangement...Itatiaia mine, Conselheiro Pena, Doce Valley, Minas Gerais, Brazil This rather sizable, pale blue-green Aquamarine | | | Book | potential deposits of SiO2 raw materials in Argentina, Brazil, Germany and Norway. The third part of the book...collaboration between scientists from Australia, Brazil, Canada, Germany, Norway, Switzerland and the USA...Color-Enhancing of Gemological Crystalline Quartz in Brazil . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . 6.3.3 Quartz Color-Enhancing in Brazil. . . . . . . . . . . . . . . . . . . . . . 139...50740-530, Brazil Mario L. S. C. Chaves Departamento de Geologia, IGC, Universidade Federal de Minas Gerais |
|