Sn-In deposit in topaz granites.
Pink porphyritic/equigranular biotite granite.
Greisenized zones encompassing a L-siderophyllite granite, a topaz-albite granite, a quartz-topaz rock, a metasomatized granite and Sn-mineralized greisens.
Refs.:
- M. Abrahao Moura et al. (2000): Revista Brasileira de Geociensas, 30(2), 270-273.
- http://www.sbgeo.org.br/rgb/vol30_down/3002/3002270.pdf