鸡血石质量评价指标与分级方法

The Chicken-blood Stone Quality Evaluation and Grading Methods

通过对昌化鸡血石及巴林鸡血石样品分析,提出鸡血石质量评价指标,即质量或规格、血色、血量、地、地色、净度,其中血色、血量、地、净度为分级指标,质量或规格、地色为描述指标,通过六个指标分级能综合地反映出鸡血石的质量等级,为鸡血石质量评估工作提供科学依据。同时还提出各质量评价指标等级划分及分级方法,使用GemDialogue颜色表征系统描述鸡血石样品的血色,使用方格法测量血量,使用宝石学特征鉴定、X射线粉末衍射成分分析及红外光谱分析测试来检测地的级别。为了验证该质量评价体系的实用性,分别对昌化鸡血石及巴林鸡血石进行了模拟分级,不同分级人员分级结果基本一致,并且分级结果所反映的优劣情况与市场价值有一定的关联性,验证了该方法的有效性。

Through the sample analysis of Changhua chicken-blood stone and Balin chicken- blood stone, the present paper puts forward the quality evaluation indexes of chicken-blood stone, that is, quality or specification, ＂blood＂ colour, ＂blood＂ coverage, ＂Di＂, ＂Di＂ col our, and clarity, in which the classification indexes include ＂blood＂ colour, ＂blood＂ coverage, ＂Di＂ and clarity, and the description indexes include quality or specification, ＂Di＂ colour. These six indexes can comprehensively describe chicken-blood stone quality level, providing scientific reference for chicken blood stone quality evaluation. Meanwhile, the quality evaluation and grading methods are put forward in this paper. GemDialogue colour identifica- tion system is used to describe ＂blood＂ colour of chicken-blood stone samples, the grid meth- od is used to measure the ＂blood＂ coverage, and the identification of gemmological character- istics, X-ray powder diffraction analysis and infrared spectroscopy analysis are used to meas- ure the level of ＂Di＂. The classification simulation of Changhua and Balin chicken-blood stone is carried out to validate the practicality of quality evaluation system. The results of the classification are nearly consistent, and the quality situation reflected in the results is related to the market value, thus validating the effectiveness of this method.