A Pedra da Riqueza
Movie| Title | A Pedra da Riqueza |
| User score | 5.5 |
| Release date | Jan 1, 1975 |
| Genre | Documentary |
| Director | Vladimir Carvalho |
| Production country | Brazil |
| Run time | 16 min. |
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.
