【摘要】 采用偏光薄片观察、X射线粉晶衍射仪、扫描电镜/能谱分析等测试方法对浙江青田县青田石进行了研究,结果表明,所选青田石样品中的封门黄、黄金耀、灯光冻、红花冻4个品种的主要矿物成分为叶蜡石;封门黑、紫檀冻这两个品种主要由叶蜡石和绢云母组成;蓝星、猪油冻、酱油冻这3个品种的主要组成矿物为叶蜡石和伊利石;珍珠冻的主要组成矿物是红柱石和叶蜡石;山炮绿的主要组成矿物为绢云母。更多还原

【Abstract】 Qingtian Stone from Qiantian County of Zhejiang Province is one of the famous "four seal stones" in China. Using such means as thin-section analysis,XRD and SEM/EDX,the authors systematically studied chemical composition and mineral composition of some typical species of Qingtian Stone. Some conclusions have been reached:① Minerals of the selected samples are mainly composed of microscaly aggregates. ② Four types of Qingtian Stones,namely Fengmenhuang,Huangjinyao,Dengguangdong and Honghuadong,are almost exclusively composed of pyrophyllite,with Honghuadong stone also containing a small amount of ilmenite. ③ Fengmenhei and Zitandong stones are mainly comprised of pyrophyllite and sericite; in addition,Fengmenhei stone also contains a small amount of ilmenite,whereas Zitandong stone also contains hematite. ④ Lanxing,Zhuyoudong and Jiangyoudong stones are composed of pyrophyllite and illite,with Lanxing stone also containing a little illite and cryptocrystalline quartz,and Zhuyoudong stone also containing hematite. ⑤ Zhenzhudong stone is almost exclusively composed of andalusite and pyrophyllite. ⑥ Shanpaol stone is mainly made up of sericite.更多还原