An XPS study of tarnishing of a gold mask from a pre-Columbian culture
Source abstract
Abstract
The tarnishing originated on a hammered gold mask was analysed. Red tarnishing was observed after three years of storage in an indoor environment in the Gold Museum of Banco de la República, Bogotá, Colombia. Silver sulphide (Ag2S) and silver sulphate (Ag2SO4) compounds were identified as the origin of the tarnishing phenomenon, which is attributed to environmental contamination. Atomic absorption spectroscopy (AAS) and X-ray photoelectron spectroscopy (XPS) techniques were used.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Conservation Techniques and Studies · Cultural Heritage Materials Analysis · Building materials and conservation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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