![A Pedra da Riqueza](https://i0.wp.com/themoviedb.org/t/p/w185/lhGl1GFzbNzUnSIMD9mkYRUV7q7.jpg)
A Pedra da Riqueza
The contrast in the extremely rudimentary form of xelite mining and the use of tungsten, obtained from xelite, in the most complex instruments of nuclear technology.
- Género: Documental
- País: Brazil
- Director: Vladimir Carvalho
- Actores: