Skip to main content

Advertisement

Table 1 Bronze-like covering: results of the PLM and SEM-EXD investigation on inorganic pigments

From: Recovery and examination of sculpture group Fugitive Slaveby V. Beklemishev

Sample Layer Elements detected by SEM-EDX Suggested pigments and minerals
Bright lower white layer Ca, S gypsum
lower dark brown layer Si, Fe, Ca, S, K mixture of gypsum and iron earth pigment
orange layer Pb lead red
dark brown layer Si, Al, Fe, Ca, S, Mg, K mixture of gypsum and iron earth pigment
bright orange chips Cu copper filings
uppermost very thin layer Cu, As copper arsenic
Dark lower white layer Ca, S gypsum
lower dark brown layer Si, Fe, Ca, S, K mixture of gypsum and iron earth pigment
orange layer Pb lead red
dark brown layer Si, Al, Fe, Ca, S, Mg, K mixture of gypsum and iron earth pigment
bright orange of chips Cu copper filings
intermediate very thin layer Cu, As copper arsenic
thick dark brown layer Si, Al, Fe, Ca, S, Mg, K mixture of gypsum and iron earth pigment
orange layer with white inclusions Pb mixture of lead red and white lead
bright orange of chips Cu copper filings
upper dark brown layer Si, Al, Fe, Ca, S, Mg, K mixture of gypsum and iron earth pigment
uppermost very thin layer Cu, As copper arsenic
  1. For each sample, the layers are discussed from bottom to top.