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odontolite

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Journal Article

From mastodon ivory to gemstone: The origin of turquoise color in odontolite

Ina Reiche, Colette Vignaud, Bernard Champagnon, Gérard Panczer, Christian Brouder, Guillaume Morin, Vicente Armando Solé, Laurent Charlet, Michel Menu
Published: 01 November 2001
American Mineralogist (2001) 86 (11-12): 1519–1524.
DOI: https://doi.org/10.2138/am-2001-11-1221
... monks are believed to have created odontolite, a turquoise-blue “gemstone,” by heating mastodon ivory found in Miocene geological layers next to the Pyrrenean chain, France, to use it for the decoration of medieval art objects. This material has been the object of investigations of famous European...
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Bronze reliquary cross of the “Real cross” from an atelier in Limoges datin...

Bronze reliquary cross of the “Real cross” from an atelier in Limoges datin...

Published: 01 November 2001
F igure 1. Bronze reliquary cross of the “Real cross” from an atelier in Limoges dating from the XIIIth century with an odontolite sample (no. Cl.998), exhibited in the National Museum of the Middle Ages, Paris, © C2RMF (used with permission). This is the first odontolite identified on a museum
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Laser-induced luminescence of Mn 5+ ( 1 E- 6 A 1 transition) in the IR re...

Laser-induced luminescence of Mn 5+ ( 1 E- 6 A 1 transition) in the IR re...

Published: 01 November 2001
F igure 5. Laser-induced luminescence of Mn 5+ ( 1 E- 6 A 1 transition) in the IR region (Exitation of 1064 nm, delay 5 μs, and width 15 μs): ( a ) odontolite from the collection of the National Museum of Natural History (Paris), and ( b ) heated fossilized ivory. The color of the 600 °C
Journal Article

Manganese accommodation in fossilised mastodon ivory and heat-induced colour transformation : Evidence by EXAFS

Ina REICHE, Guillaume MORIN, Christian BROUDER, Vicente Armando SOLÉ, Pierre-Emmanuel PETIT, Colette VIGNAUD, Thomas CALLIGARO, Michel MENU
Published: 01 November 2002
European Journal of Mineralogy (2002) 14 (6): 1069–1073.
DOI: https://doi.org/10.1127/0935-1221/2002/0014-1069
...Ina REICHE; Guillaume MORIN; Christian BROUDER; Vicente Armando SOLÉ; Pierre-Emmanuel PETIT; Colette VIGNAUD; Thomas CALLIGARO; Michel MENU Abstract Odontolite or bone turquoise, a turquoise-blue coloured heated fossilised mastodon ivory or bone, is an imitation of the mineral turquoise used...
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Mn K-edge XANES spectra of (a) fossilized ivory; (b) 600 °C heated foss...

Mn K-edge XANES spectra of (a) fossilized ivory; (b) 600 °C heated foss...

Published: 01 November 2001
F igure 6. Mn K-edge XANES spectra of (a) fossilized ivory; (b) 600 °C heated fossilized ivory; (c, d) turquoise-blue collection odontolites; and (e) synthetic apatite Ba 5 (PO 4 ) 2.5 (MnO 4 ) 0.5 Cl taken as reference mineral with Mn 5+ in tetrahedral coordination. Inset: Pre-edge
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Diffuse reflectance spectra between 200 and 1200 nm of (a) collection odo...

Diffuse reflectance spectra between 200 and 1200 nm of (a) collection odo...

Published: 01 November 2001
F igure 3. Diffuse reflectance spectra between 200 and 1200 nm of (a) collection odontolite from the National Museum of Natural History (Paris); (b) heated fossilized mastodon ivory; and (c) synthetic Ba 5 (PO 4 ) 2.5 (MnO 4 ) 0.5 Cl. The indicated absorption bands correspond
Journal Article

Color origin and heat evidence of paleontological bones: Case study of blue and gray bones from San Josecito Cave, Mexico

Céline Chadefaux, Colette Vignaud, Emilie Chalmin, Jasinto Robles-Camacho, Joaquin Arroyo-Cabrales, Eileen Johnson, Ina Reiche
Published: 01 January 2009
American Mineralogist (2009) 94 (1): 27–33.
DOI: https://doi.org/10.2138/am.2009.2860
... The first unambiguous evidence for the origin of blue color of ancient bone material was based on research on fossil ivory ( Reiche et al. 2000 , 2001 , 2002a ) in the case of “Odontolite.” Odontolite is a turquoise imitation made of fossil ivory material that comes basically from Southern France from...
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Journal Article

Gems (6 th edition): By M. O’Donoghue, editor). Elsevier, Amsterdam, The Netherlands. 2006, hardbound, 874 pages + 32 colored plates. £90.00. ISBN 0750658568

Peter Bayliss
Published: 01 April 2007
The Canadian Mineralogist (2007) 45 (2): 404–405.
DOI: https://doi.org/10.2113/gscanmin.45.2.404
... (antigorite) are used. The group name of taaffeite is used for magnesiotaaffeite. Mineralogical varietal names such as aquamarine (Fe 2+ -rich beryl), bronzite (Fe-rich enstatite), kämmererite (Cr-rich clinochlore), and odontolite (Mn 5+ -rich fluorapatite) are used. This book just reflects the chaos...
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Journal Article

THE USE OF CHEMICAL-ELEMENT ADJECTIVAL MODIFIERS IN MINERAL NOMENCLATURE

Peter Bayliss, Herbert D. Kaesz, Ernest H. Nickel
Published: 01 August 2005
The Canadian Mineralogist (2005) 43 (4): 1429–1433.
DOI: https://doi.org/10.2113/gscanmin.43.4.1429
... , C. , Champagnon , B. , Panczer , G. , Brouder , C. , Morin , G. , Sole , V.A. , Charlet , L. & Menu , M. ( 2001 ): From mastodon ivory to gemstone: the origin of turquoise color in odontolite . Am. Mineral . 86 , 1519 – 1524 . Rieder , M...
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Book Chapter

Mineral pigments: the colourful palette of nature

Author(s)
Ina REICHE
Book: The Contribution of Mineralogy to Cultural Heritage
Series: EMU Notes in Mineralogy series
Publisher: Mineralogical Society of Great Britain and Ireland
Published: 01 January 2019
DOI: 10.1180/EMU-notes.20.7
EISBN: 9780903056625
... of Paris CaSO 4 ·0.5H 2 O Anhydrite CaSO 4 Permanent white (1830) baryte BaSO 4 apatite ivory or bone white Ca 5 (PO 4 ) 3 OH zinc phosphate Zn 3 (PO 4 ) 2         Posnjakite Cu(SO 4 )     Phosphates           Bone turquoise or odontolite Mn 5+ doped apatite Ca 5 (PO 4 ) 3 OH Vivianite...
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The use of minerals as pigments in art and on archaeological objects, from the use of ochre in prehistoric caves to the elaborate transformation and use in ancient and modern artist palettes, is reviewed in this chapter. Starting from the purposes of the study of pigments, the chapter presents current trends in the study of coloured minerals in cultural heritage science. It emphasizes through the use of case studies the potential of these minerals in terms of information about former ways of life and especially the artistic techniques employed in ancient times. This information is gained through knowledge of geological and physicochemical processes acting on minerals and on artefacts produced by human activities. Some new trends are presented as the state of the art of how to master most of the methods and techniques useful for investigating our common cultural heritage.