什么是玉?翡翠的由来?如何鉴别翡翠?

 　　yushiyizhongteshudeshitou，zhixierjianying，youguangze、lvetouming，kediaozhuochenggongyipin，rugudaihuangdideyinzhang - yuxi。yufenweiyingyuheruanyu，feicuijiushidianxingdeyingyu;ruanyudezhongleikeyifenwei：yangzhibaiyu、baiyu、qingbaiyu、qingyu、huangyu，tangyu、moyu、biyu，ruhetianyujiushiruanyu，yudemingchengyeshilaiziruanyu。

　　翡翠是怎么来的呢?

　　feicui，yechengfeicuiyu、cuiyu、yingyu、miandianyu，“feicui”demingchenglaiyuanziniaoming，zheizhongniaodeyumaofeichangxianyan，xiongxingdeyumaochenghongse，mingfeiniao，cixingdeyumaochenglvse，mingcuiniao，hechengfeicui。mingchaoshi，miandianyuchuanruzhongguohou，jiuguanyi“feicui”zhiming。bafeicuiyonglaizhiyushi，shicongsecaijiaodudejiedai， hongseweifei，lvseweicui。

　　翡翠的物理属性

　　feicuidemoshiyingduzai6.5～7dequjiannei，midu3.34(+0.06，-0.09)g/cm³，zheshelv1.666～1.680(±0.008)，diance1.65～1.67。

　　翡翠的化学成分

　　1. yingyuzhifeicui，juedabufenfeicuishucileixing

　　2. lvhuishizhifeicui，zhuyaoyouyouqingzhongfeicui、mocui

　　3. nagehuishizhifeicui，zhuyaopinzhongyouganqingzhongfeicui

　　如何鉴定翡翠?

　　1.kanzheshelvri：feicuidezheshelvshi1.66(diance)

　　2.ceshimidu：feicuidemiduzai3.33-3.36zhijian，zai3.32zhongyezhongxuanfuhuohuanmanshangshenghuoxiajiang。

　　3.kanxishouguangpu：lvsefeicuipinzhongzaihongguangqu630nm、660nm、690nmyousantiaojietizhuangxishoupu，ziquyouxishouxian。feicuizai437nmxishouxianjuyouzhenduanyiyi。

　　4. fangdaguancha：feicuijuyoulizhuangxianweijiaozhijiegou，zhuzhuangxiangqianjiegou、zhuzhuangbianjingjiegoudeng。zhidixinishi，paomohoubiaomianguanghua，juyouweiaoboluo。zhidijiaocushi，kejianjielimianshanguangji"cuixing"。

　　dangran，ruguojinjinshijiezhugerende“yanli”laijiandingfeicui，shifeichangkunnande，zhengyinci，zhubaoyushijiandingzhengshucaixiandeyouqidezhongyao。quanweidejiandingzhengshudouhuizaixiemingzheigefeicuidezheshelv、midu、xishouguangpu、fangdaguancha，youzhengshudezheixiejiandingshuju，womenjiunengqingeryijudezhidaodangqianzheigeshangpinshibushifeicuile。youzhengshu，womenhaixuyaochaxunheduizhengshuheshangpinshiyizhi。