The use of micaceous pigments for the chromatic reintegration of the gilded stuccoes in the Lante della Rovere chapel of Palazzo Orsini at Bomarzo

Elena Testa, Luca Lanteri, Giuseppe Capobianco, Giuseppe Bonifazi, Silvia Serranti, Francesca Montozzi, Paola Pogliani, Claudia Pelosi
Abstract:
The present paper summarizes the fundamental results of the study and restoration of the gilded stucco decoration of the Lante Della Rovere Chapel of Palazzo Orsini in Bomarzo (Viterbo), which was the subject of a master's thesis in Conservation and Restoration of Cultural Heritage at University of Tuscia. The diagnostics was fundamental for understanding the executive technique and investigating the problems relating to the state of conservation of the artefact. It was performed by in situ non-invasive techniques such as ultraviolet fluorescence photography and X-ray fluorescence spectroscopy, and in the laboratory by micro-invasive analysis through Fourier transform infrared spectroscopy. After the characterisation of the materials, the execution techniques, and the state of conservation of the stuccoes, some tests were executed on mocks-up to evaluate the possibility of using micaceous pigments to reintegrate the gilded surfaces. The mock-ups were investigated by X-ray fluorescence spectroscopy in mapping modality to evaluate the pigments’ composition. The stability over time of the micaceous pigments was evaluated through colour measurement, and hyperspectral imaging.
Download:
IMEKO-MetroArchaeo-2023-114.pdf
DOI:
10.21014/tc4-ARC-2023.114
Event details
IMEKO TC:
TC4
Event name:
TC4 MetroArchaeo 2023
Title:

IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

Place:
Rome, ITALY
Time:
19 October 2023 - 21 October 2023