B货翡翠的红外光谱特征及鉴定意义

THE INFRARED SPECTRA OF TYPE-B JADEITE JADES AND SIGNIFICANCE IN THEIR IDENTIFICATION

在对 9个B货翡翠样品进行常规宝石学特征描述的基础上 ,进行了红外光谱测试。结果表明B货翡翠最主要的吸收峰是 2 95 9(或 2 966) ,2 93 1(或 2 92 4 )和 2 895cm-1这一组 ,而 15 10 ,15 81,160 9cm-1和3 0 4 0 ,3 0 60cm-1这两组谱带可作为鉴定B货翡翠的辅助谱带 ,但不是必要的谱带。研究结果可为准确鉴定B货翡翠提供进一步的资料。

The infrared spectra of 9 samples of Type-B jadeite jade are presented in the paper. The results show that the main absorption peaks of Type-B jadeite jades are three peaks at 2 959 (or 2 966), 2 931 (or 2 924) and 2 895 cm -1 , while peaks at 1 510, 1 581, 1 609 cm -1 and /or 3 040, 3 060 cm -1 are aided but not necessary proofs for identifying the Type-B jadeite jades. A sample without peaks at 1 510, 1 581, 1 609 cm -1 and /or 3 050, 3 060 cm -1 should not be regarded as a Type-A jadeite jade. The result is useful for identifying the Type-B jadeite jades.