A must read.
Useful link:
http://www.gia.edu/gems-gemology/summer-2016-gemnews-spectral-characteristics-pinctada-mazatlanica-margaritifera-pearl-oyster-species
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Thursday, August 11, 2016
Spectral Characteristics Of Pinctada Mazatlanica And Pinctada Margaritifera Pearl Oyster Species
Labels:
Artitaya Homkrajae,
GIA
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