Jean-Pierre Gauthier (1) & Martial Bonnet (2) DOI : 10.63000/gQ6XF78wb5 Abstract THE PEARLS OF SAINT-GINGOLPH – A short history reports on the manufacture of « Perles du Lac » in Saint-Gingolph (Switzerland), produced from 1920 until the workshops closed in 1974, then resumed in 2020. The basic materials are essentially a solid glass core, covered with fine […]
Charline Coupeau (1) & Marie Chabrol (2) DOI : 10.63000/mX7zMA958i Abstract THE INTIMATE LIFE OF STONES – A Through the study of ancient and contemporary texts, this study shows that the links between sexuality and mineralogy are more tenuous than one might think at first glance. Throughout History, human being has felt a form of […]
Marie Chabrol (1), Maxence Vigier (2), Emmanuel Fritsch (2) & Jean-Pierre Gauthier (3) DOI : 10.63000/8SWAV6GF53 Abstract IMITATIONS OF AQUAMARINES EXHIBITING A « HAIRY » ALTERATION – A batch of 5 samples, sold in 2010 as a set of aquamarines in Madagascar, caught the eye of our team. Although these stones were kept in a safe away […]
Jean-Pierre Gauthier (1), Jacques Fereire (1) & Stefanos Karampelas (3) DOI : 10.63000/P4QF7CM88Y Abstract TRAPICHE-LIKE INCLUSION IN AN OBSIDIAN FROM JALISCO, MEXICO – A cabochon-cut obsidian from Jalisco, Mexico, shows two white spherulitic inclusions on the surface, one of which was sectorized into four domains, the other into six, thus simulating a trapiche structure. This […]
C’est avec beaucoup de fierté et de joie que nous vous annonçons la sortie du quatrième numéro de la revue GEMMES. Au sommaire de ce numéro, vous retrouverez les contributions de Féodor Blumentritt, Aurélien Delaunay, Éloïse Gaillou, Charline Coupeau, Marie-Laure Cassius-Duranton, Marie Chabrol, Maxence Vigier, Franck Notari, Clara Allirol-Mouton, Stefanos Karampelas, Emmanuel Fritsch, Chloé Picard, […]
Gemmologie & Francophonie Abstract Buying an antique piece of jewelry is – often – buying a piece of history and sometimes even a fragment of the History. Sentimental, historical and even financial value are often associated with the notion of lifespan. And yet, the materials used for jewelry are sometimes less precious than the contemporary […]
Aurélien Delaunay (1), Emmanuel Fritsch (2) & Ingrid Lerouyer (3) DOI : https://doi.org/10.63000/6zwK85TXb7 Abstract In a batch of variscite, one sample stood out because of its slightly different color and texture. Laboratory analysis showed that it is an antlerite, Cu3(SO4)(OH)4 a rare mineral that is generally better known in mineralogy than in gemology. This specimen […]
Stéphane Renard (1) DOI : https://doi.org/10.63000/dV5c4fH4R2 Abstract The art of stone or gem engraving was invented at the dawn of civilizations. It has played an essential role in the history of art and culture from its start to nowadays, evolving over the centuries to become a means of artistic expression.The earliest forms of glyptic art […]
Thomas Cagniard (1), Jean-Pierre Gauthier (2) & Jacques Fereire (2) DOI : https://doi.org/10.63000/wq5XXR9f68 Abstract Highlighted by popular belief, the eye of Saint-Lucia is a biomineral, which is of undoubted gemological interest by its nature and through its use. As gastropod operculum of the species Bolma rugosa, its name is not protected and may have been […]
C’est avec beaucoup de fierté et de joie que nous vous annonçons la sortie du troisième numéro de la revue GEMMES. Au sommaire de ce numéro, vous retrouverez les contributions de Stéphane Renard, Thomas Cagniard, Féodor Blumentritt, Aurélien Delaunay, Franck Notari, Ingrid Lerouyer, Boris Chauviré, Clara Allirol-Mouton, Marianna Corre, Emmanuel Fritsch, Chloé Picard, Lauriane Pinsault, […]
