CAJ | 학술논문

铁铝榴石表面的光泽差异可作为其是否经过了充填处理的重要证据之一,但需要辨别其成因是天然矿物包裹体出露还是人工注入材料所致。采用常规的宝石学测试方法和红外光谱技术分析了铁铝榴石样品的宝石学特征及其表面弱光泽材料的红外光谱特征,获得了其是否经过充填处理的关键证据。结果表明,显微红外反射光谱中1 200~900 cm-1范围内的谱带以及798,779 cm-1处的吸收峰表明铁铝榴石中的异相材料为石英矿物包裹体,而不是油、树脂、蜡、玻璃等人工充填物。因此,铁铝榴石表面有弱光泽材料的存在不能简单视为其经过充填处理的关键证据,其表面存在的矿物包裹体可能是引起石榴石光泽变化的原因之一。
철려류석표면적광택차이가작위기시부경과료충전처리적중요증거지일,단수요변별기성인시천연광물포과체출로환시인공주입재료소치。채용상규적보석학측시방법화홍외광보기술분석료철려류석양품적보석학특정급기표면약광택재료적홍외광보특정,획득료기시부경과충전처리적관건증거。결과표명,현미홍외반사광보중1 200~900 cm-1범위내적보대이급798,779 cm-1처적흡수봉표명철려류석중적이상재료위석영광물포과체,이불시유、수지、사、파리등인공충전물。인차,철려류석표면유약광택재료적존재불능간단시위기경과충전처리적관건증거,기표면존재적광물포과체가능시인기석류석광택변화적원인지일。
The luster difference on surface cavity of almandine is one of the important proofs for whether the almandine is filled by artificial materials or not.However,it is necessary to identify whether the luster difference origins from the surface-reaching natural mineral inclusions or not.The gemmological characteristics of almandine samples and surface material being weak luster with infrared spectral characteristics are studied by using the conventional gemmological methods and infrared spectrometer,which could determine whether the almandine samples have been filled or not.The results show that the microscope reflectance infrared spectra of the out-of-phase material have apparent absorption peaks at 1 200 to 900,798,779 cm-1,which verify the existence of the natural quartz inclusion instead of artificial fillings.The surface-reaching material being weak luster is not the diagnostic evidence for whether the almandine has been filled or not,while the existence of mineral inclusion may lead to the different luster on the surface of almandine.