Research subject. The transformed clastic ores (ore diagenites) of the Ishkinino Co-bearing massive sulfide deposit hosted by serpentinites Main Uralian Fault Zone. Materials and methods. structures textures were stu died. trace element contents sulfides oxides determined using LA ICP MS. physical chemical modeling diagenetic formation accessory As minerals was conducted Selektor program packag...

The chemical reaction of group-14 elements with molecular nitrogen at pressures above 60 GPa successfully leads to the formation of pyrite-type pernitrides. These new crystalline group-14 elemental pernitrides were found to show a bulk modulus higher than the other known group-14 elemental nitrides. Our results offer significant new progress in the solid-state chemistry of nitrides.

Pyrite and calcite are mineral phases that play a major role in acid neutral mine drainage processes. However, the prediction of (AMD) or contaminated (CND) requires knowledge composition mining waste related potential for element release. This paper studies combination acid–base neutralizing capacity (ANC–BNC) with geochemical modeling characterization AMD CND. The proposed approach is validat...

Scanning electron microscopy with wavelength-dispersive spectrometry has been used to measure trace metals in coal and ash. Hg, As. Ni, and Se have been detected in individual pyrite grains in Illinois #6 coal at levels up to 2680 ppm, 410 ppm, 320 ppm, and 880 ppm, respectively. These elements were present in fewer than half the grains analyzed. Cr has been detected at up to 950 ppm in half of...