In this work, we studied wall painting fragments from the exedra in Domus 1 and tablinum in the House of the Lararium in Bilbilis, an ancient Roman town in the Spanish province of Saragossa, in order to find whether the two paintings were produced by the same artisan workshop and to identify the painting technique used. For this purpose, we examined the paint and mortar layers of the fragments by using various semi-destructive instrumental techniques including X-ray diffraction (XRD), X-ray fluorescence (XRF) and Raman spectroscopies, and scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM-EDS). The fragments used were representative of the colours in each paint, which included black, yellow, green, burgundy, beige and orange. Raman spectroscopy in combination with XRF analyses allowed the chemical composition of each pigment to be unequivocally established. All pigments (carbon, yellow ochre, a glauconite–Egyptian blue mixture, hematite, aragonite and red lead) were typically used in Hispania. Based on the Raman and XRD results, the mortars were obtained in the traditional manner by mixing sand and lime.

在这项工作中，我们研究了来自Domus 1的 exedra和Bilbilis 的 Lararium House 的tablinum的壁画碎片，西班牙萨拉戈萨省的一个古罗马小镇，为了查明这两幅画是否出自同一个工匠作坊，并确定所使用的绘画技术。为此，我们使用各种半破坏性仪器技术检查了碎片的油漆和砂浆层，包括 X 射线衍射 (XRD)、X 射线荧光 (XRF) 和拉曼光谱，以及扫描电子显微镜/能量色散 X -射线光谱（SEM-EDS）。使用的碎片代表了每种油漆中的颜色，包括黑色、黄色、绿色、酒红色、米色和橙色。拉曼光谱结合 XRF 分析可以明确确定每种颜料的化学成分。所有颜料（碳、黄赭石、海绿石-埃及蓝混合物、赤铁矿、西班牙。根据拉曼和 XRD 结果，砂浆是通过混合砂和石灰以传统方式获得的。