Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Stefanos Karampelas"'
Autor:
Féodor Blumentritt, Emmanuel Fritsch, Nicolas Stephant, Stefanos Karampelas, Aurélien Delaunay, Candice Caplan, Franck Notari
Publikováno v:
The Journal of Gemmology. 38:443-446
Autor:
Stefanos Karampelas, Eloïse Gaillou, Annabelle Herreweghe, Farida Maouche, Ugo Hennebois, Sophie Leblan, Bérengère Meslin Sainte Beuve, Michel Lechartier, Didier Nectoux, Aurélien Delaunay
Publikováno v:
Gems & Gemology. 58:168-183
Pink to Purple Sapphires from Ilakaka, Madagascar: Insights to Separate Unheated from Heated Samples
Autor:
Stefanos Karampelas, Ugo Hennebois, Jean-Yves Mevellec, Vincent Pardieu, Aurélien Delaunay, Emmanuel Fritsch
Publikováno v:
Minerals; Volume 13; Issue 5; Pages: 704
The present study is focused on the analysis of zircon inclusions found in pink to purple sapphires from Ilakaka (Madagascar) with an optical microscope, Fourier-transform infrared (FTIR), and micro-Raman spectroscopy in order to update previous know
Autor:
Stefanos Karampelas, Marie Wörle
Publikováno v:
Journal of Raman Spectroscopy. 53:563-569
Publikováno v:
The Journal of Gemmology. 38:317-319
Publikováno v:
The Journal of Gemmology. 38:117-119
Publikováno v:
The Journal of Gemmology. 38:16-18
Publikováno v:
The Journal of Gemmology. 37:164-179
Autor:
Maria Nikopoulou, Stefanos Karampelas, Eloïse Gaillou, Ugo Hennebois, Farida Maouche, Annabelle Herreweghe, Lambrini Papadopoulou, Vasilios Melfos, Nikolaos Kantiranis, Didier Nectoux, Aurélien Delaunay
Publikováno v:
Minerals
Volume 13
Issue 2
Pages: 158
Volume 13
Issue 2
Pages: 158
In the present study, rough emerald single crystals and rough emeralds in the host rock from the ruins of Alexandria and from the Mount Zabargad in Egypt, preserved in the collection of the museum of the Ecole des Mines (Mines Paris—PSL) since the
Autor:
J. C. Hanco Zwaan, Stefanos Karampelas
Publikováno v:
The Journal of Gemmology. 37:461-463