"昌化田黄石"的结构和成分研究

采用电子探针、扫描电镜、X射线粉晶衍射、红外光谱分析、热重分析、X射线能谱分析、激光拉曼光谱分析等测试方法对"昌化田黄石"样品的结构和成分进行了研究,并结 合寿山田黄石进行对比,结果表明"昌化田黄石"样品主要以隐晶质结构、块状构造为主,主要矿物组成为地开石,并含有部分高岭石、高岭石-地开石的过渡物和微量明矾石,其成分和结构与寿山产田黄石基本一致。因此,本文提出了对田黄石定义的建议,即凡产于坡积层或田坑中,具有"细、洁、润、腻、温、凝"之"六德标准"且主要由地开石等高岭石族矿物组成的透有黄色调的块状独石均可称为田黄石。

A study of structure and composition of Tianhuang Stone from Changhua

Using such means as EMPA, SEM, XRD, IR, TG, XEDS and RAMAN, the authors studied the structure and composition of Tianhuang Stone from Changhua. The results show that the samples are dominated by cryptocrystalline texture and massive structure. The main minerals include dickite, kaolinite, and transitional minerals of kaolinite, dickite and alunite. The structure and composition are quite similar to those of Tianhuang stone from Shoushan. It is held that the yellowish massive stones which are composed of such kaolinite-group minerals as dickite, produced in slope wash materials and paddy fields, and consistent with six morality standards can be called Tianhuang Stone without exception.