What does it really take to document a new gemstone deposit from a scientific and gemmological perspective?
This article offers a rare behind-the-scenes look.

In this detailed study, Lola Jougla presents the results of her second-year geology internship, carried out at GGTL Laboratories. The report focuses on the documentation and analysis of a previously little-studied vesuvianite deposit, combining field data with advanced laboratory techniques.

Far from a simple descriptive paper, the article explores:

• the geological context of the deposit,
• gemmological characteristics of the material,
• internal features and inclusions,
• chemical and spectroscopic analyses,
• and the implications for identification and classification.

Vesuvianite is a mineral often overlooked in gemmology, yet this work reveals its complex formation processes, color origins, and diagnostic features, making it highly relevant for gemmologists, mineralogists, and anyone interested in analytical gem science.

If you are curious about how new gemstone deposits are scientifically documented — from raw material to laboratory interpretation — this article is well worth reading.

• Jougla L., Blumentritt F., Notari F. (2025) Massive Cryptocrystalline Vesuvianite-Grossular from Eastern Afghanistan; Gemmological and Geological Considerations. The Journal of Gemmology, 39(7), 2025, pp. 672–687.