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July 2010
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1,822 Reads
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318 Citations
Gems & Gemology
The distinction of natural from cultured pearls traditionally has been based on X-radiography. X-ray computed microtomography (μ-CT) has recently been applied to gain more insight into pearl structures. Using this technique, this article presents features observed in a selection of natural pearls and beaded and non-beaded cultured pearls. Based on these observations, μ-CT is shown to be a powerful tool for pearl identification.
... [28][29][30][31] Additionally, tomography studies have conrmed that the pearl layer oen deviates from the expected theoretical model. 33,34 While tomography now allows us to visualize the inner structure of a pearl, it cannot directly determine its composition. To bridge this gap, we employ in situ analysis to decipher the intricate relationship between structure and composition at a microscopic level. ...
July 2010
Gems & Gemology
