Tribute to Kuppusami Govindaraju

With sadness we report that Kuppusami Govindaraju, or Raj as he was universally known by his scientific colleagues in France and across the World, passed away in January this year. Raj was arguably – and certainly in the European sphere…

Demantoid garnet deposits: review and geological classification

Gaston Giuliani, Isabella Pignatelli, Julien Feneyrol, Anthony E. Fallick, Alfred Andriamamonjy The Canadian Journal of Mineralogy and Petrology (2025) 63 (5): 421–465. Voir en ligne : https://doi.org/10.3749/2500010 The aim of this extended review and update is to present the state-of-the-art on…

Origin of the mass-dependent germanium isotopic continuum in the early Solar System

Béatrice Luais, Guillaume Florin Earth and Planetary Science Letters, 672, 119663 Voir en ligne : https://doi.org/10.1016/j.epsl.2025.119663 The warm, reduced, volatile-poor inner Solar System and cold, oxidized, volatile-rich outer Solar System are characterized by neutron-poor and neutron-rich isotopic anomalies, respectively. Nucleosynthetic isotopic…

A Rare Yellow Diamond: Reconstruction of the Possible Geological History

Isabella Pignatelli and Cristiano Ferraris Crystals 2025, 15(5), 461 Voir en ligne : https://doi.org/10.3390/cryst15050461 Abstract: In this study, a rare 3.49-carat yellow diamond was analyzed to reconstruct the geological processes that led to its distinctive form. The diamond exhibits growth and…