Feature Gems & Gemology, Fall 2001, Volume 37, No. 3

Jeremejevite: A Gemological Update

The submission of a large (4.54 ct) jeremejevite of an unusual—yellow—color to the AGTA Gemological Testing Center prompted a search of the available gemological literature and a detailed examination of five additional samples to learn more about this rare gemstone. It was found that the information in some English-language texts was either confusing or contributed little to our gemological knowledge. The authors confirm the available standard gemological properties and add pertinent data for the UV-visible, infrared, and Raman spectra, as well as for trace elements measured by EDXRF.

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