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IDENTIFYING DIAMOND TYPES AND LABORATORY-GROWN DIAMONDS WITH CPF
Identifying Diamond Types and Laboratory -Grown Diamonds with (CSF (Cross Polarized Filters)
Ed. 2023
pages: 40
Description
Birefringence of diamond is observed from all directions in order to see the entire pattern and thereby determine type (I or II) and origin (natural or laboratory-grown).
Handout for BrankoGems Academy Intermediate Workshops on “Screening for Diamond Types and ID of Laboratory-grown Diamonds with CPF, UV lamp and EXA PL spectrometer”.
Authors: Branko Deljanin , Dusan Simic, Randy Lightfoot
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