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To find out the colouring mechanism and the form of water molecule of ouilin hydrothermally-grown sguthetic emerald, the test of electronic probe and the test of the spectrum etc are adopted in the research. The result shows that Guilin hydrothermally-grown synthetic emerald is characterhed by low content of alkali and Fe but some are out of Cl; both Ⅰ -troe and,Ⅱ -type water exist. Its colour should be attributed to the separation of F-spectrum term and spectrum term of electrons jumping between the different emerge levels. Moreover, nail-like inclusions of three facies and microwave patterns often exist, which can be regarded as identified f6atures of this kind of emeralds, and FTIR can be applied to identibog all kinds of emeralds.
To find out the coloring mechanism and the form of water molecule of ouilin hydrothermally-grown sguthetic emerald, the test of electronic probe and the test of the spectrum etc are adopted in the research. The result shows that Guilin hydrothermally-grown synthetic emerald is characterhed by low content of alkali and Fe but some are out of Cl; both I -troe and, Ⅱ -type water exist. Its color should be attributed to the separation of F-spectrum term and spectrum term of electron jumping between the different emerge levels Moreover, nail-like inclusions of three facies and microwave patterns often exist, which can be regarded as identified f6atures of this kind of emeralds, and FTIR can be applied to identibog all kinds of emeralds.