CAJ | 학술논문

为研究缅甸翡翠中的哪些部位适合做烧红处理以及该部位能被烧红的原因,采用加热实验、偏光显微镜、红外光谱及差热分析方法对缅甸翡翠样品的原生部位、雾部位的加热前、后的特征进行了测试与分析。结果显示,翡翠中的蓝雾部位及黄雾部位适合做烧红处理,原生部位不适合烧红处理,蓝雾部位可以被烧成黄色及红色,黄雾部位可以被烧成红色。雾部位适合用来做烧红处理的原因在于,在低温的加热条件下,蓝雾部位中的大量的Fe2＋发生价态变化,实现由绿泥石向针铁矿的转变所导致,该过程由表及里逐步进行。原生部位的主要矿物硬玉需被加热更高的温度,在破坏其晶格的情况下,才可以呈现出红色,且该红色不具有褐色调。
위연구면전비취중적나사부위괄합주소홍처리이급해부위능피소홍적원인,채용가열실험、편광현미경、홍외광보급차열분석방법대면전비취양품적원생부위、무부위적가열전、후적특정진행료측시여분석。결과현시,비취중적람무부위급황무부위괄합주소홍처리,원생부위불괄합소홍처리,람무부위가이피소성황색급홍색,황무부위가이피소성홍색。무부위괄합용래주소홍처리적원인재우,재저온적가열조건하,람무부위중적대량적Fe2＋발생개태변화,실현유록니석향침철광적전변소도치,해과정유표급리축보진행。원생부위적주요광물경옥수피가열경고적온도,재파배기정격적정황하,재가이정현출홍색,차해홍색불구유갈색조。
In order to study which part of jadeite from Myanmar can be used to do a red-hot processing and explain why it can be used to do a red-hot processing,this paper investigates the characteristics of heating of jadeite from Myanmar by using the thermogravimetric and thermal analysis（TG-DSC）,polarizing microscope and infrared spectrum（IR）.The results show that the origin zone of this type of jadeite cannot be turned red at a low temperature 400℃,while its fog zone can be turned red at this low temperature.In this process,the blue fog can be heated to yellow and red,and the yellow fog can be heated to red.The reason of this transformation is that a great amount of Fe2 ＋ in chlorite is oxidized to form into Fe3 ＋ at a low temperature,making the blue fog zone turn to yellow,while Fe2 ＋ in jadeite is so less and needs to be heated a more higher temperature that can make it be oxidized to Fe3 ＋,which will damage the lattice of jadeite.