CAJ | 학술논문

田黄是一种产于福建寿山、以地开石或珍珠陶石为主要矿物组成的玉石,其具有＂形＂＂皮＂＂格＂＂纹＂特征。由于田黄的价格昂贵,市场上常有田黄仿制品出现。主要介绍一种斜绿泥石质田黄仿制品材料,该斜绿泥石质仿田黄为黄色至褐黄色,玻璃光泽,半透明,具有似＂萝卜丝纹＂与＂红筋＂,外貌上与田黄十分形似,较易混淆,但斜绿泥石质仿田黄的透明度较田黄的好;该斜绿泥石质仿田黄的实测折射率为1.585,相对密度为2.81,二者均较田黄的高;X射线粉末衍射分析,斜绿泥石以14.39,7.14,4.74,3.55处的衍射峰为特征,而田黄则没有14附近的衍射峰;红外光谱的结果显示,虽然斜绿泥石质仿田黄和田黄均在3 700~3 400 cm-1范围内具有羟基吸收,但前者显示宽吸收基础上叠加了3 679,3 671,3 651和3 629 cm-1处4个极弱的肩形峰,而后者却有3 700,3 645,3 625 cm-1处的尖锐的强吸收峰。运用X射线粉末衍射分析或红外光谱、折射率和相对密度等测试方法可将其区别开。
전황시일충산우복건수산、이지개석혹진주도석위주요광물조성적옥석,기구유＂형＂＂피＂＂격＂＂문＂특정。유우전황적개격앙귀,시장상상유전황방제품출현。주요개소일충사록니석질전황방제품재료,해사록니석질방전황위황색지갈황색,파리광택,반투명,구유사＂라복사문＂여＂홍근＂,외모상여전황십분형사,교역혼효,단사록니석질방전황적투명도교전황적호;해사록니석질방전황적실측절사솔위1.585,상대밀도위2.81,이자균교전황적고;X사선분말연사분석,사록니석이14.39,7.14,4.74,3.55처적연사봉위특정,이전황칙몰유14부근적연사봉;홍외광보적결과현시,수연사록니석질방전황화전황균재3 700~3 400 cm-1범위내구유간기흡수,단전자현시관흡수기출상첩가료3 679,3 671,3 651화3 629 cm-1처4개겁약적견형봉,이후자각유3 700,3 645,3 625 cm-1처적첨예적강흡수봉。운용X사선분말연사분석혹홍외광보、절사솔화상대밀도등측시방법가장기구별개。
Tian Huang,which has its own features in shape,skin and grain,is a kind of jade produced at Shoushan Village in Fujian Province.Its main mineral component is dickite or nacrite.However,there are lots of imitations in the market due to the high price of Tian Huang.In this paper,a new type of Tian Huang imitation which is mainly composed of clinochlorite is identified.The Tian Huang imitation is yellow to brownish yellow in colour,and translucent with glassy luster.What＇s more,＂radish grain＂ and ＂red grille＂ can be found in the Tian Huang imitation.As a result,it is difficult to distinguish the imitation from Tian Huang by only judging the exterior appearance.However,the Tian Huang imitation is more transparent than Tian Huang.The measured refractive index is 1.585 and the specific gravity is 2.81 for the Tian Huang imitation,which are higher than that of Tian Huang.By X-ray powder diffraction analysis,clinochlorite is characterized by the diffraction peaks at 14.39,7.14,4.74,3.55  while Tian Huang is lack of 14 .Both of the Tian Huang imitation and Tian Huang show their hydroxyl absorptions between 3 7003 400 cm-1 in the infrared spectra.It is worth emphasizing the difference that the Tian Huang imitation has faint shoulder-shaped absorptions at 3 679,3 671,3 651 and 3 629 cm-1 over a broad absorption,while Tian Huang has sharp absorptions at 3 700,3 645,3 625 cm-1.Hence,it is not difficult to identify Tian Huang from clinochlorite by means of X-ray powder diffraction,infrared spectrum,refractive index and specific gravity measurement.