IDENTIFYING DIAMOND TYPES AND LABORATORY-GROWN DIAMONDS WITH CPF
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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

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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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