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。
Shoushan ＂Kengtoudong＂ is a typical stone of Shoushan puddle stone which is rare and expensive.By XRD,FTIR,ICP-MS,SEM and other instruments,mineral component,chemical composition,microstructure of ＂Qinghaibai＂＂Dandongbai＂ and ＂Yanmenjing＂ are investigated systematically when they appear on the market recently as the imitation of Shoushan ＂Kengtoudong＂.The results show that ＂Kengtoudong＂ is mainly composed of dickite,observed with typical ＂Luobosiwen＂,and a higher percentage of Fe in chemical composition might result from its pyrite inclusions.＂Qinghaibai＂ is mainly composed of gypsum,which is of lower hardness.＂Dandongbai＂ is mainly composed of clinochlore,and dark green speckle impurities lead to dusky appearance.＂Yanmenjing＂ is mainly composed of dickite and higher V and Cr might be the reason that the stone show limegreen tones.SEM observation shows that Shoushan ＂Kengtoudong＂ samples have a high degree of crystallization with false hexagonal flake structure.The crystals plate of ＂Qinghaibai＂ is of large granularity,thickness and loose accumulation,thus it can be easily distinguished from others.The lamellar crystal of clinochlore of ＂Dandongbai＂ is thin and piled up closely,flex developed,thus it is smooth to the touch.The microscopical features of ＂Yanmenjing＂ are much like Shoushan ＂Kengtoudong＂,but its crystal degree is a little lower.The stones mentioned above are different in colour,luster,weighting and inclusions,due to their different mineral components and chemical compositions.