A quartz vein hosted by porphyritic granites, carrying copper, uranium and selenium minerals. Located near Kruth, close to the road to the Oderen Pass (Col d'Oderen). The vein was discovered in 1951 and explored by the french Atomic Energy Commission. However, until 1953, only a few kg of pitchblende were extracted, whose occurrence was limited to a single, small orebody. Today, the locality is inaccessible.
