TY - CPAPER TI - Beusite, barbosalite, leucophosphite and laueite from João Quarry, Conselheiro Pena, Minas Gerais, Brazil PY - 2000 AU - Matioli, P. A. AU - Atencio, Daniel AU - Alves, P. R. P. C. AU - Menezes, L. A. D. T2 - International Geological Congress J2 - Abstracts Volume PP - Rio de Janeiro PB - CPRM ER -