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- Title
UV-Vis-NIR Reflectance Spectroscopy of Natural-Color Saltwater Cultured Pearls from Pinctada Margaritifera.
- Authors
Karampelas, Stefanos; Fritsch, Emmanuel; Gauthier, Jean-Pierre; Hainschwang, Thomas
- Abstract
Natural-color saltwater cultured pearls from Pinctada margaritifera were studied by diffuse reflectance UV-Vis-NIR spectroscopy to identify the absorption features associated with their various colors. Nine patterns observed in the visible range demonstrated that individual colors are caused not by one pigment but by a mixture of pigments.
- Subjects
PEARLS; PACIFIC pearl oyster; BIOLOGICAL pigments; NEAR infrared spectroscopy; ULTRAVIOLET spectroscopy
- Publication
Gems & Gemology, 2011, Vol 47, Issue 1, p31
- ISSN
0016-626X
- Publication type
Article
- DOI
10.5741/GEMS.47.1.31