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Fritsch, E., Gaillou, E., Rondeau, B., Barreau, A., Albertini, D. & Ostroumov, M. (2006) The nanostructure of fire opal. J. Non-Cryst. Solids, 352 3957–3960. 
Added by: Florent Boucher (2016-05-12 13:21:36)
Type de référence: Article
DOI: 10.1016/j.noncrysol.2006.08.005
Numéro d'identification (ISBN etc.): 0022-3093
Clé BibTeX: Fritsch2006
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Catégories: CESES, INTERNATIONAL, PMN
Mots-clés: atomic force and scanning tunneling microscopy, nanoparticles, photonic crystals, Scanning electron microscopy, silica, sio2 opals
Créateurs: Albertini, Barreau, Fritsch, Gaillou, Ostroumov, Rondeau
Collection: J. Non-Cryst. Solids
Consultations : 9/342
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
Fire opal, a transparent orange variety of opal, which does not diffract visible light, is built from the random accumulation of granular particles of hydrated silica, about 20 nm in size. This opal variety does not present the structure most commonly associated with precious opal, that is, a regular three-dimensional network of amorphous silica spheres about 200 nm in diameter. About 60 samples (from Mexico, Brazil, Kazakhstan, Ethiopia, Tanzania, Slovakia and USA) were documented using scanning electron and atomic force microscopy. This work demonstrates that nanograins are the elementary building blocks of this variety of opal. (c) 2006 Elsevier B.V. All rights reserved.
Added by: Florent Boucher  
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