浅析翡翠的岩石类型对其比重、折射率的影响  

Analysis of the influences of jadeite types on the refractivity and specific density

作　　者：谢星[1] 王崇礼[1] 梁婷[1] 

机构地区：[1]长安大学地球科学与国土资源学院,陕西西安710054

出　　处：《地球科学与环境学报》2004年第4期24-27,53,共5页Journal of Earth Sciences and Environment

摘　　要：　翡翠的矿物组成、岩石类型不同,将会对翡翠的比重、折射率产生直接的影响。从翡翠的岩石学、矿物学角度出发,讨论了翡翠的岩石类型,依据组成翡翠的主要矿物的比重和折射率值,建立了翡翠矿物组成成分及含量与其比重、折射率关系图解,确定了各种翡翠的比重、折射率变化范围分别为:2.93～3.60和1.593～1.750;优质翡翠的比重、折射率分别为:3.178～3.240和1.644～1.657,为翡翠的质量评估提供了客观依据。The contents of jadeite's mineral composition and rock types will influence the refractivity and specific density of jadeite directly. On the basis of the study on the mineral composition and rock types of jadeite,the authors determine that the specific density and refractivity of jadeite ranges from 2.93 to 3.60 and from 1.593 to 1.750 respectively, the specific density and refractivity of jadeite with high quality ranges from 3.178 to 3.240 and from 1.644 to 1.657 respectively, and offers the objective basis for jadeite's quality appraisal,through setting up several charts of the relation between jadeite's specific density refractivity and its mineral composition.

关 键 词：翡翠 岩石类型 矿物学 岩石学 矿物组成 比重 折射率 图解 依据 优质 

分 类 号：P619[天文地球—矿床学] P588[天文地球—地质学]