La policromía de las yeserías del Oratorio de la Madraza de Yūsuf I, Granada. Primeras Aportaciones del estudio de materiales para la localización de zonas originales 
y añadidos

New Insights into the Medieval Hispano-Muslim Panel Painting: The Alfarje Found in a Balearic Casal (Spain)

“…In the eleventh century, natural resins began to be melted in oils and applied hot, which provided rough surfaces [ 63 ]. Linseed oil and diterpenic resins have been identified in the Alhambra complex [ 20 , 21 ], in the oratory of the Yusuf I Madrasa, Granada [ 74 ], or the Mudéjar façade of King Pedro I, Seville [ 27 , 28 ].…”

Colorimetric and spectral data analysis of consolidants used for preservation of medieval plasterwork

“…In order to determine the technique and material used, we took into account previous research on these types of coatings [15,9]. We also took into account other studies conducted by our team on heritage works of a similar age, particularly the Royal Chamber of Santo Domingo [16], the oratory in the Madrasa [17] in the city of Granada and the plasterwork in the Royal Alcazar of Seville. Thus, we made a total of 18 test specimens (see Fig.…”

Methodology for characterising microlayers in historical plasterwork

“…In sample SE A , the blue colour is due to azurite (Cu 3 (OH) 2 (CO 3 ) 2 ) or basic copper carbonate [10,12,37]. Azurite was the most important blue pigment up until the 16th century [38], and was commonly used in Hispano-Moresque painting techniques from the 13th to the 14th centuries.…”

“…Some plasterwork studies have taken microphotographs of sections and determined the composition of microlayers to identify pigments in order to confirm their authenticity before restoration work, [6][7][8][9][10][11]. However, most research has examined the plasterwork as a support to determine its composition [10], looked at historical lime or gypsum mortars [1,[13][14][15][16][17][18], or studied the pathologies and interventions for gypsum finishing coats [19][20][21][22][23].…”

“…However, most research has examined the plasterwork as a support to determine its composition [10], looked at historical lime or gypsum mortars [1,[13][14][15][16][17][18], or studied the pathologies and interventions for gypsum finishing coats [19][20][21][22][23]. There are no specific methodologies documented, though, on the study of historic plasterwork microlayers.…”