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Pleochroism and cutting
https://gemologyonline.com/Forum/phpBB2/viewtopic.php?f=86&t=25056
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Author:  Isi [ Mon Mar 18, 2019 6:18 am ]
Post subject:  Pleochroism and cutting

An interesting educative article about pleochroism related to cutting.
http://www.lotusgemology.com/index.php/ ... LjNv3HbB28

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