Citation: Atencio, D.; Coutinho, J. M. V.; Doriguetto, A. C.; Mascarenhas, Y. P.; Ellena, J.; Ferrari, V. C. (2008). Menezesite, the first natural heteropolyniobate, from Cajati, Sao Paulo, Brazil: description and crystal structure Locality: Jacupiranga mine, Cajati county, Sao Paulo, Brazil. American Mineralogist, 93, pp. 81-87.