First European Gemmological Symposium: "Presence and Future of Gemmology.".Published in:2007By:Shigley, James E.;Koivula, John I.Publication type:Proceeding
Large beryl triplets imitating Colombian emeralds.Published in:Gems & Gemology, 2007, v. 43, n. 3, p. 267By:Singbamroong, Sutas;Falasi, Moza Rashed AlPublication type:Article
Juchem—Achate, Drusen, Sammler—Der berühmte Steinbruch bei Niederwörresbach in der Region Idar-Oberstein (Juchem—Agate, Geodes, Collectors—The Famous Quarry near Niederwörresbach in the Idar-Oberstein Region) edited by Joachim Lorenz and Kay Müssig (in German). Mitteilung des Naturwissenschaftlichen Museums der Stadt Aschaffenburg vol. 27. Helga Lorenz Verlag. 516 pages; 2015; €34.90 (hardbound).Published in:2016By:Neumeier, GüntherPublication type:Book Review