Silver transfer in proustite at high temperatures: Conductivity and single-crystal X-ray studies

On the Reactivity of Sulfosalts in Cyanide Aqueous Media: Structural, Bonding and Electronic Aspects

“…[13] The discovery of diverse technical applications for proustite has lead to a large number of studies on their structure and physical properties. [14,15] Cyanide leaching is currently the dominant process to extract gold and silver from ores. [1,4] Much has been written about the cyanide process since its successful launch at the end of the nineteenth century.…”

“…There is a small rotation between consecutive ZS 3 pyramids along the stacks down the c-axis. [15,19] These pyramids are isolated from each other and occupy the C 3 sites in the lattice, while Ag atoms reside in half of the possible C 1 sites between the pyramids. [19,21] Silver atoms link the ZS 3 units through SÀAgÀS' bonds to form helical chains in the direction of the c-axis.…”

Impedance spectroscopy of synthetic proustite at high pressures

“…The unique physical properties of crystalline proustite (Ag 3 AsS 3 ) (e.g., its ionic conductivity, varia tions in heat capacity at low temperatures, phase tran sitions, optical and acoustic characteristics, and ferro electric properties) allow us to apply it in acoustoopti cal, optoelectrical, electroacoustic, and other devices [1][2][3][4]. The external effect on proustite properties, i.e., the material functioning with variation in external parameters, is of theoretical and practical interest.…”

“…Silver (copper) ions in sulfosalts are associated with the pyramidal complexes by relatively weak ionic bonds. Such com plicated chemical bonding controls many of the phys ical properties of the considered materials, particu larly the substantial ion transfer in proustite (Ag 3 AsS 3 ) and smithite (AgAsS 2 ) [3,5]. The structural formulas of the compounds distinguished by the existence of pyramidal complexes such as AsS 3 in their structure should be given in a form emphasizing their crystal lochemical features.…”

Structural and electrical investigation of (Ag3AsS3)x(As2S3)1−x superionic glasses

“…† E-mail: studenyak@dr.com was shown that defects in the silver substructure play a major role in the proustite conduction mechanism. Furthermore, silver transfer is equally probable within silver chains, spirals and between chains and spirals [4]. Silver containing chalcogenide glasses are also well known for use in optical and electrical recording.…”