台湾蓝玉髓的另类模仿品

OTHER KIND OF TAIWAN BLUE CHALCEDONY IMITATION

蓝玉髓是台湾最珍贵的宝石之一，它产于台湾东部海岸山脉一带。由于几十年来不断地采掘使得产量大减，在供不应求的情况下，各种模仿品应运而生。在台湾市场上最常见的模仿品有染色蓝玉髓、染色蓝石英岩及蓝色蛋白石。最近我们鉴定到一些新的模仿品，其折射率及比重非常接近蓝玉髓，但红外光谱显示与玻璃相同，以EDXRF分析，认定是人造玻璃。

Blue chaleedony is one of the most precious gemstones in Taiwan, The most popular imitations of blue chalcedony in Taiwan market are dyed chalcedony, dyed quartzite and blue opal. Recentlywe checked one of the new imitations and found its RI and SG very close to blue chalcedony but the spectrum of FTIR the same as glass. With the analysis of EDXRF we make sure it is a man-made glass.