De Luca Raffaella, Gigliotti Valentina, Panarello Mario, Bloise Andrea, Crisci Gino M, Miriello Domenico
Department of Biology, Ecology and Earth Sciences, University of Calabria, Via P. Bucci, Cubo 12B, 87036 Arcavacata di Rende (CS), Italy.
Department of Biology, Ecology and Earth Sciences, University of Calabria, Via P. Bucci, Cubo 12B, 87036 Arcavacata di Rende (CS), Italy.
Spectrochim Acta A Mol Biomol Spectrosc. 2016 Jan 15;153:184-93. doi: 10.1016/j.saa.2015.08.018. Epub 2015 Aug 13.
This work shows the results of the spectroscopic, microchemical and petrographic study carried out on six plasters coming from three important residential buildings of the 18th century, located in Lamezia Terme (Catanzaro, Southern Italy). To study the provenance of the raw materials used to make the plasters, one sample of limestone and two samples of sand were also collected from the quarries near Lamezia Terme and compared with the historical plasters. Samples were studied by polarized optical microscopy (OM), X-ray powder diffraction (XRPD), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS) and Raman spectroscopy. The results of these analyses allowed to determine the mineralogical, petrographical and chemical characteristics of the plasters, identify the pigments used for their coloration and provide useful information about the building techniques, the raw materials employed and the production technology of plasters during the 18th century in Lamezia Terme. SEM-EDS microanalysis also revealed the presence of gold and silver on the surface of two samples.
这项工作展示了对来自18世纪三座位于拉梅齐亚泰尔梅（意大利南部卡坦扎罗省）重要住宅建筑的六块石膏进行光谱、微量化学和岩相学研究的结果。为了研究制作石膏所用原材料的来源，还从拉梅齐亚泰尔梅附近的采石场采集了一份石灰石样本和两份沙子样本，并与历史石膏进行了比较。通过偏光光学显微镜（OM）、X射线粉末衍射（XRPD）、配备能量色散X射线光谱仪（EDS）的扫描电子显微镜（SEM）和拉曼光谱对样本进行了研究。这些分析结果有助于确定石膏的矿物学、岩相学和化学特征，识别用于着色的颜料，并提供有关18世纪拉梅齐亚泰尔梅的建筑技术、所用原材料和石膏生产工艺的有用信息。SEM-EDS微量分析还揭示了两个样本表面存在金和银。
