The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb-Zn-(±Cu,Ag,Au,Sb,Bi,W) Šumadija-Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among them, samples from the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further investigated by conventional and high-resolution transmission electron microscopy methods. TEM revealed abundant planar crystallographic defects and epitaxial surface oxide layer ...
... studies on ion incorporation into FeAsS structure and its environmental
stability and oxidation mechanisms as a source of anthropogenic As release into the environment.
Keywords: FeAsS; crystal structure; oxidation; XRPD; TEM
1. Introduction
Arsenopyrite (FeAsS) is worldwide abundant natural sulphide ...
... Kopaonik ore district (Serbia) by powder X-ray diffraction (XRPD). Among, them, samples from
the Drenjak gold mineralisation showed near-stoichiometric FeAsS composition and were further
investigated by conventional and high-resolution transmission electron microscopy methods. TEM
revealed abundant planar ...
... mainly focuses on the chemistry, processing, and
weathering of the Au-containing arsenic sulphide minerals [4]. The ability to incorporate
Au in FeAsS structure coincides with the vast amount of (geo)chemical data published,
which contrasts sharply with the available structural data [2,5-7]. The ...
Ivana Jelić, Aleksandar Pačevski, Aleksandar Kremenović, Aleš Šoster, Andreja Šestan, Janez Zavašnik. "Crystallography and Surface Oxidation of Stoichiometric Arsenopyrite from Šumadija-Kopaonik Pb-Zn/Polymetallic Ore District (Serbia)" in Crystals, MDPI AG (2023). https://doi.org/10.3390/cryst13020278
