During the excavations carried out since 2017 in the House of the Mithraeum (Casa del Mitreo) in Mérida a collection of paintings was recovered from Room 11, which had been abandoned in the late 3rd c. CE after a fire. The remains included fragments of molded stucco cornices, with braided esparto grass ropes on the reverse that were used to attach them to the ceiling. This article presents the descriptive and technical study of the finds and their compositional analysis using scanning electron microscopy and X-ray diffraction. Data resulting from these analyses allow us to understand the fragments’ composition and technical execution, and even the possible circulation of workshops and raw materials.

自 2017 年以来，在梅里达的密特拉神殿 (Casa del Mitreo) 进行的挖掘工作中，从 11 号房间中发现了一批画作，这些画作在 3 世纪后期已被遗弃。火灾后的 CE。遗骸包括模制灰泥飞檐的碎片，背面有编织的esparto草绳，用于将它们连接到天花板上。本文介绍了对这些发现的描述性和技术性研究，并使用扫描电子显微镜和 X 射线衍射对其成分进行了分析。从这些分析中得出的数据使我们能够了解碎片的组成和技术执行，甚至是车间和原材料的可能流通。