The mineralogy, elemental composition and modes of element occurrence in a vitrain lens from the western and peripheral part of the Vulche Pole coal deposit (Bulgaria) were studied. The total concentration of trace elements established in the lens is 12.7 % (ash basis) including 7.75 % Ge which is among the highest contents of the element reported until now. The low ash coal lens (7.8 % ash) contains a great variety of detrital and authigenic minerals. The group of detrital minerals and phases includes quartz, K-feldspars, plagioclases, biotite, amphibole, zircon, apatite (coarse crystalline), volcanic glass and native Au. The authigenic minerals are presented by pyrite, sphalerite, galena, gypsum, jarosite and anglesite. The identified minerals such as opal, cristobalite, kaolinite, illite, muscovite, Fe oxides-hydroxides, delafossite, apatite (fine crystalline), monazite, xenotime, gamagarite and stolzite could have a detrital and/orauthigenic origin. Despite extremely high (over Clarke) concentrations of such elements as Ge, U, Sb, Sm, V, Mo, Ce, Hf, Y, Yb, Zn, As, Tb and Zr, these elements demonstrate a strong association or dominant affinity with the organic matter. Some of the aforesaid elements occur as discrete minerals (Zn, Zr, Ce, Y, V, Hf) and as impurities in the minerals (Zn, As, V, Ge, Hf, U, Zr). However, the mineral matter is only a minor constituent in the lens and its contribution to the enrichment of these elements is not of great significance.