There are 3 common “Jades”. They are Fei Cui (翡翠), Nephrite (軟玉) and Serpentine (蛇紋石).
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Use FTIR to analysis Jade composition
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In late 2006, The Gemmological Association of Hong Kong released HKSM/JJT-2006 titled ‘Standard methods for testing Fei Cui (jadeite jade) for Hong Kong.
Contents of this standard begins with a precise definition of Fei Cui, its major physical properties, and a tabulation of the various types of Fei Cui (Types A, B, C, and B+C) that are available commercially.
Until now, there are five gemstone testing laboratories who achieved HOKLAS accreditation by HKAS. They are:
No.151 – Asian Gemmological Institute and Laboratory Limited
No.152 – China Gems Laboratory Limited
No.153 – Hong Kong Jade & Stone Laboratory Limited
No.156 – Yang Mulia Gems Limited – Hong Kong Gems Laboratory
No.165 – Jewellery Trade Laboratory Limited