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Della Robbia blue glaze: micro‐Raman temperature study and X‐ray fluorescence spectroscopy characterization
Author(s) -
Sendova M.,
Kaiser B.,
Scalera M.,
Zhelyaskov V.
Publication year - 2010
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2459
Subject(s) - raman spectroscopy , glaze , terracotta , characterization (materials science) , pigment , chemistry , mineralogy , materials science , analytical chemistry (journal) , art , ceramic , optics , metallurgy , nanotechnology , physics , visual arts , organic chemistry , chromatography
Micro‐Raman temperature study and X‐ray fluorescence (XRF) spectroscopy were used for characterization of the blue glaze on Saint John the Baptist —majolica terracotta relief attributed to Andrea Della Robbia and Saint John the Baptist with Cross —majolica terracotta statue attributed to Giovanni Della Robbia. Both objects are on permanent exhibition in the John and Mable Ringling Museum of Art in Sarasota, FL. This study proves that the detection of the 548 cm −1 Raman band alone cannot serve as evidence for presence of lazurite crystallites in the pigment in the glaze. It was established that the famous Della Robbia blue is due to the combined effect of CoNiCuZn atoms and S 3 − ions embedded in a lead silicate matrix. It is proposed that the Della Robbia family used Co‐containing sulfide ores as a source for manufacturing their blue pigments. Copyright © 2009 John Wiley & Sons, Ltd.