Chauviré, Boris, Mollé, Valentin, Guichard, Florine, Rondeau, Benjamin, Thomas, Paul Stephen, Fritsch, Emmanuel (2023) Cracking of Gem Opals. Minerals, 13 (3) 356 doi:10.3390/min13030356

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	Fritsch, Emmanuel, Rondeau, Benjamin, Devouard, Bertrand, Pinsault, Lauriane, Latouche, Camille (2017) Why Are Some Crystals Gem Quality? Crystal Growth Considerations On the “Gem Factor”. The Canadian Mineralogist, 55 (4) 521-533 doi:10.3749/canmin.1700013
	Boris Chauviré, Benjamin Rondeau, Anne Alexandre, Sarah Chamard-Bois, Carole La, Francesco Mazzero. (2019) Pedogenic origin of precious opals from Wegel Tena (Ethiopia): Evidence from trace elements and oxygen isotopes. Applied Geochemistry Vol. 101, pp 127-139. ISSN 0883-2927
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