1. MINERALOGY OF BOHEMIAN GREEN EARTH PIGMENT AND ITS MICROANALYTICAL EVIDENCE IN HISTORICAL PAINTINGS.
- Author
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HRADIL, D., PÍŠKOVÁ, A., HRADILOVÁ, J., BEZDIČKA, P., LEHRBERGER, G., and GERZER, S.
- Subjects
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PIGMENTS , *MICROCHEMISTRY , *PAINTING , *MINERALOGY , *CELADONITE , *X-ray diffraction - Abstract
While the most famous historical green earth deposits in Italy and Cyprus were exceptionally rich in celadonite, the deposits near Kadaň, Czech Republic, consisted of thin Fe-rich celadonite impregnations accompanied by interstratified celadonite/smectite. In superimposed tuffs, smectites become prevalent and their colour changes from forest to olive green. Powder X-ray microdiffraction and infrared microspectroscopy permit us to distinguish between green earth minerals in microsamples taken from works of art. The Ti contents and the Fe/Mg ratios help to indicate the presence of Bohemian green earth from Kadaň. We found this material in local 18th-century works of art and also in paintings by Anton Kern (1709-47). [ABSTRACT FROM AUTHOR]
- Published
- 2011
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