翡翠的鉴定与价值评估

摘要:

翡翠是中国人最喜爱的玉石品种之一，近几年来，中高档翡翠的市场价格已有十几倍甚至几十倍的增长。人工合成翡翠也已有报道研制出来，其与高档翡翠差别更是微乎其微，这给宝玉石鉴定工作提出了更新、更高的要求。“黄金有价玉无价”只有正确判断翡翠的品种、品质级别，才能更好地评估其价值。该文对翡翠的矿物组成、化学成分、结晶习性、结构、力学性质及翡翠的常规鉴定方法和红外光谱在翡翠鉴定中的应用进行了论述，提出了对翡翠的颜色、透明度、质地、净度、质量大小等进行品质分级并对其对价值评估的影响进行了阐述。

Abstract:

Jade is the most popular varieties of jade. In recent years, the market price of high grade jade has increased by 10 times or even several times. It is reported that synthetic emerald has also been produced as well. It has very little difference with high grade jade, which has put forward newer and higher requirements in gem identificatiification. "Gold is valuable while jade is priceless". According to correct species and quality level, the value of jade can be determined correctly. In this paper, the mineral composition of emerald, chemical composition, crystal habit, structure, mechanical properties, jade conventional identification methods and identification of infrared spectroscopy in the application of jade have been briefly introduced, and the emerald color, transparency, texture, clarity quality size to quality grading, and assessment of their impact on value are explained as well.