方解石脉中天然SiO_2晶体内外部特征分析  

Analysis of Internal and External Characteristics of Natural SiO_2 Crystal in Calcite Vein

作　　者：何涛[1] 

机构地区：[1]天津职业大学生物与环境工程学院,天津300410

出　　处：《科技通报》2014年第12期1-3,6,共4页Bulletin of Science and Technology

基　　金：天津职业大学科学研究基金项目(20131104)

摘　　要：以方解石脉中产出的天然SiO2晶体为研究对象,利用体式显微镜、扫描电子显微镜观察晶体的结晶形态和表面形貌,统计了各单形晶面的出现几率,比较了形貌特征的差异;通过研究包体相态,测定均一温度和盐度,分析SiO2晶体的结晶温度和生长环境,讨论了温度和晶体结构对方解石脉中SiO2晶体内外部特征的影响。The crystalline forms and crystal morphology of natural SiO2 crystal which crystallized in calcite vein were ob-served by using microscope and scanning electron microscope（SEM）. The occurring rate of each form was surveyed, and thedifference of crystal morphology was contrasted. The crystallization temperature and environment of SiO2 crystal was ana-lyzed by observing the inclusions and measuring the temperature and salinity. A discussion was made including the effectof temperature and crystal structure on the internal and external characteristics of natural SiO2 crystal which crystallized incalcite vein.

关 键 词：SiO2晶体 形貌 包体 方解石脉 

分 类 号：O643[理学—物理化学] TQ42[理学—化学]