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板石(Allevardite)或称钠板石,最早发现于法国萨瓦省阿尔瓦。G.W.布林德利(Brindley)等人认为板石的结构为水分子所分隔的双云母型基本层。板石的特征X射线24—28为d_(001)基面的衍射,即云母层(10)与蒙脱石层(14—18)之和。透射电子显微镜下呈典型的长方形轮廓和褶迭板条等形态。 1979年作者在湖南耒阳县上堡黄铁矿矿床热液蚀变带中发现了板石,嗣后进行了X射线衍射、透射电子显微镜、选域电子衍射、红外光谱、差热分析及化学分析等方面的研究,探
Allevardite or slate, first discovered in Alba, Savoie, France. G.W. Brindley et al. Consider the structure of the slab to be a bi-mica-type basement separated by water molecules. The characteristics of the slab X-rays 24-28 are the diffraction of the d 001 surface, ie the sum of the mica layer (10) and the smectite layer (14-18). Transmission electron microscopy showed a typical rectangular profile and pleated lamellae and other forms. In 1979, the authors found slate in the hydrothermal alteration zone of the Shangpu pyrite deposit in Xingyang County, Hunan Province. Subsequently, X-ray diffraction, transmission electron microscopy, selected field electron diffraction, infrared spectroscopy, differential thermal analysis and chemical analysis And other aspects of research, exploration