A study on the characteristics of some opals from Turkey

By Esenli F.   Kumbasar I.   Esenli V.   Kırıkoğlu S.  

Neues Jahrbuch für Mineralogie - Monatshefte, Vol. 2003, Iss. 4, 2003-04 ,pp. : 177-192

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A contribution to the study of FTIR spectra of opals

By Adamo Ilaria   Ghisoli Christian   Caucia Franca  

Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry, Vol. 187, Iss. 1, 2010-03 ,pp. : 63-68

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Opals from Slovakia ("Hungarian" opals): a re-assessment of the conditions of formation

By Rondeau Benjamin   Fritsch Emmanuel   Guiraud Michel   Renac Christophe  

European Journal of Mineralogy, Vol. 16, Iss. 5, 2004-10 ,pp. : 789-799

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Physical, geochemical and gemological properties of opals from Faroe Islands

By Caucia Franca   Marinoni Luigi   Leone Alberto  

Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry, Vol. 191, Iss. 1, 2013-11 ,pp. : 33-43

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XRD studies of opals (4 Å peak) in bentonites from Turkey: Implications for the origin of bentonites

By Esenli Fahri   Şans Bala Ekinci  

Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry, Vol. 191, Iss. 1, 2013-11 ,pp. : 45-53

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