Uranium mineralization occurs in a quartz vein with gold and REE minerals. The vein cuts the Early Paleozoic rocks in the proximity of the granite body of the Humel Massif. The mineralization is represented by uraninite, brannerite, arsenopyrite, pyrite, glaucodot, gold, galena, bismuth, bismuthinite, xenotime-(Y), rutile, sericite, chlorite, apatite, monazite-(Ce) and tourmaline. Secondary minerals are represented by goethite, trögerite, zeunerite and scorodite.