Dutrow, Barbara L. Complexly zoned fibrous tourmaline, Cruzeiro mine, Minas Gerais, Brazil: a record of evolving magmatic and hydrothermal fluids - Toronto, ON Mineralogical Association of Canada February 2000 - pp. 131-143 ilus. ISSN: 0008-4476 Subjects--Topical Terms: ALTERACIÓN HIDROTERMALDISOLUCIONELBAITATURMALINA Subjects--Geographic Terms: BRASILMINAS GERAIS