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Posts of : C. Dunaigre

Sapphires Heated with Pressure – A Research Update

Author(s) :

- Date : 2019

Tags : Gemmology / High Pressure / Research / Sapphire / Treatment

Sapphires Heated with Pressure – A Research Update. Published in InColor, Spring 2019, 86-90.

Author(s) :

- Date : 2007

Tags : Madagascar / Tourmaline / Vanadium

Vanadium-bearing gem-quality tourmalines from Madagascar. Published in Journal of Gemmology, 2007.

Author(s): K. Schmetzer, H.-J. Bernhardt, C. Dunaigre, H.A. Haenni