BRANNERYT Z WOŁOWEJ GÓRY I TOWARZYSZĄCE MU MINERAŁY URANU (KARKONOSZE)

Abstract

BRANNERITE AND ASSOCIATED URANIUM MINERALS FROM WOŁOWA GÓRA (KARKONOSZE MTS., POLAND)Abstract. Brannerite is a rare mineral that can be regarded as one of the uranium ores. In Poland, its occurrence is confirmed only among the quartzose veins located on the slopes of Wołowa Góra, 3 km southwest of Kowary, in the Karkonosze range. Its presence was confirmed thanks to X-ray diffraction analyses. The purpose of this paper is estimation of the chemical composition of the brannerite. Using the EPMA (Electron Probe Micro Analysis) technique also specifies the composition of minerals formed during the weathering of the brannerite have also been specified. Among its most common decomposition products, metaautunite and sabugalite were found, reported for the first time from Wołowa Góra.