In complex granitic pegmatites, formed by oxidation and hydration of primary.
IMA Status:
Valid Species (Pre-IMA) 1955
Locality:
In Brazil, in Minas Gerais, at the Sapucaia pegmatite mine, about 50 km east-southeast of Govenador Valdares, and in good crystals from the Criminoso pegmatite mine, about 35 km north
Link to MinDat.org Location Data.
Name Origin:
Named for Aluxio Licinio de Miranda Barbosa (1916- ), Professor of Geology, School of Mines, Ouro Preto, Brazil.