高山一带寿山石的主矿物研究

应用化学分析、X射线衍射、红外光谱、扫描电镜、差热热重等分析手段对高山寿山石进行了主矿物的研究.X射线衍射分析表明,高山石的主要矿物成分是迪开石,其主要衍射峰为0.412 4 nm、0.379 9 nm和0.232 6 nm,测得其结晶度指数介于1.29～1.4,分析认为高山石为结晶度中等的有序迪开石.红外光谱图中,高山石的高频区出现3 696.39 cm-1,3 652 cm-1和3 620.35 cm-1的吸收峰,是典型的迪开石羟基吸收带分裂形成的3个吸收峰.差热热重实验分析也证实了高山寿山石的主矿物种属.另外,扫描电镜观察显示高山寿山石以细鳞片状和假六方板状为主.

Research on the Main Mineral of Shoushan Stone from Gaoshan District

Based on such analytical means as chemical analysis, XRD, IR, SEM and TG-DTA, the author carried on the research on the main mineral of Shoushan stone from Gaoshan district. XRD studies show that Shoushan stone from Gaoshan is mainly composed of dickite, because it displays three main diffraction peaks at 0. 4124nm, 0. 3799nm and 0. 2326nm. Its crystallinity index was calculated to be 1.29- 1.4, indicating its middling degree of order. IR of Gaoshan stone emerge three absorption peaks at 3696.39cm^-1, 3652cm^-1 and 3620.35cm^-1 , which caused by the splitting of hydroxyl absorption bands of dickite. DTA- TG experiment analysis also confirmed the conclusions of the main mineral of Gaoshan stone. And observed through SEM, Gaoshan stone mainly appear thin squama and false sixsquare plank.