摘要
为了探究GRS证书中对于"鸽血红"红宝石的判定依据,采用显微分光光度计,对几枚GRS"鸽血红"红宝石样品进行了透过率值的测量。一方面在色度学的基础上,将测量结果转换为样品的CIE均匀色度坐标,以此来探究GRS"鸽血红"红宝石的颜色定量范围;另一方面结合宝石学理论,排除多色性和荧光对红宝石颜色测量的影响,并解释了部分同色异谱的红宝石难以称为"鸽血红"红宝石的原因。研究分析发现,GRS将具备缅甸红宝石产地特征的艳红色红宝石称为"鸽血红"红宝石。
In order to test the criteria provide by the GRS certificate for ＂pigeon＇s blood＂ ru-by, the authors use microspectrophotometer to measure the transmittance value of several GRS ＂pigeon＇s blood＂ ruby samples. On one hand, colorimetric measurements of the sam-ples are converted to CIE chromaticity coordinates for the quantitative range of colour of GRS ＂pigeon＇s blood＂ ruby. On the other hand, the authors exclude the effects of pleochro- ism and fluorescence on the colour measurement, and explain the reasons for some metamer-ism ruby which can＇t be called ＂pigeon＇s blood ＂ ruby with the help of gemmology theories. According to the research and analysis, GRS defines those vivid red rubies with features of Burma ruby as ＂pigeon＇s blood ＂ rubies.
出处
《宝石和宝石学杂志》
CAS
2012年第4期44-49,共6页
Journal of Gems & Gemmology
