青田石的矿物组成特征研究  

Composition characteristics of Qiantian Stone

作　　者：业冬[1] 赵旭刚[1] 邹妤[1] 祖恩东[1] 王蕾蕾[1] 

机构地区：[1]昆明理工大学,云南昆明650093

出　　处：《岩石矿物学杂志》2010年第2期219-224,共6页Acta Petrologica et Mineralogica

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。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.

关 键 词：浙江青田石 叶蜡石 绢云母 矿物组成 

分 类 号：P619.281[天文地球—矿床学] P575[天文地球—地质学]