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Amber and plastic reactions to illumination.

Plastic Amber Imitation in a Rosary

Nazar Ahmed Ambalathveettil, Mohamed Karam, and Sutas Singbamroong, May 8, 2017

Examination reveals both amber and Bakelite plastic beads in a rosary submitted for identification.

Characterisation of “Green Amber” With Infrared and Nuclear Magnetic Resonance Spectroscopy

Ahmadjan Abduriyim, et al.

A peridot-like bright greenish yellow to green gem material called “green amber” has recently appeared in the gem market.

Abstract Header from the 2009 issue of Gems & Gemology

Abstracts; Summer 2009

Brendan M. Laurs, Thomas W. Overton

This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

Identification of Extraterrestrial Peridot by Trace Elements

Andy H. Shen, John I. Koivula, and James E. Shigley

Twenty-six peridot samples from the Esquel pallasite meteorite and 27 samples from 10 terrestrial sources were studied by laser ablation.

Abstracts; Winter 2009

Brendan M. Laurs, Thomas W. Overton

This article, from the Winter 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

Composite amber with an unusual structure

Jie Liang, Haibo Li, Taijin Lu, Meidong Shen, and Jun Zhang, January 31, 2014

This 9.12 gram amber composite featured a combination of natural and imitation amber, accompanied by natural and artificial insect inclusions.

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