Henry A. Hänni

X-Ray Computed Microtomography: Distinguishing Natural Pearls from Beaded and Non-Beaded Cultured Pearls

Michael S. Krzemnicki, Sebastian D. Friess, Pascal Chalus et al. · Gems & Gemology · 2010 · 39 citations · Full text

Identification of filler substances in emeralds by infrared and Raman spectroscopy

Lore Kiefert, Henry A. Hänni, J-P. Chalain et al. · Journal of gemmology/˜The œjournal of gemmology · 2000 · 32 citations

Materials Science, Environmental Chemistry, Engineering +7

Raman Investigations on Two Historical Objects from Basel Cathedral: The Reliquary Cross and Dorothy Monstrance

Henry A. Hänni, Benno Schubiger, Lore Kiefert et al. · Gems & Gemology · 1998 · 30 citations

Basel Cathedral, Historical Objects, History Of Science +1

Structural and chemical investigations on shells and pearls of nacre forming salt- and fresh-water bivalve molluscs

W. Gutmannsbauer, Henry A. Hänni · Journal of gemmology/˜The œjournal of gemmology · 1994 · 29 citations

Salt Dome, Engineering, Marine Materials +3

Identification of GE POL diamonds: a second step

J-P. Chalain, Elisabeth Fritsch, Henry A. Hänni · Journal of gemmology/˜The œjournal of gemmology · 2000 · 25 citations

Materials Science, Crystal Structure, Diamond-like Carbon +3