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Trinepheline and fabriesite: two new mineral species from the jadeite deposit of Tawmaw (Myanmar)

Autor: Chamard-Bois, Sarah, Notari, Franck, Gauthier, J.-P., Stephant, N., Cody, J., Fritsch, Emmanuel, Chauviré, Boris, Mazzero, Francesco, Ayalew, Dereje, Ferraris, Cristiano, Parodi, Gian Carlo, Pont, Sylvain, Rondeau, Benjamin, Lorand, Jean-Pierre

Publikováno v: European Journal of Mineralogy
European Journal of Mineralogy, E Schweizerbart Science Publishers, 2014, 26 (2), pp.257-265. ⟨10.1127/0935-1221/2014/0026-2348⟩
European Journal of Mineralogy, Copernicus, 2014, 26 (2), pp.257-265. ⟨10.1127/0935-1221/2014/0026-2348⟩
European Journal of Mineralogy, 2014, 26 (2), pp.257-265. ⟨10.1127/0935-1221/2014/0026-2348⟩

Two new mineral species, trinepheline (NaAlSiO 4 ) and fabriesite (Na 3 Al 3 Si 3 O 12 · 2H 2 O), are described from late-stage metamorphic veins of the jadeite deposit of Tawmaw-Hpakant (Myanmar). Both minerals and their names were approved by the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99f0d79419cec703a076891822a5965a
https://hal.archives-ouvertes.fr/hal-02435384

Sugar-acid treatment of opal from Wollo, Ethiopia

Autor: Rondeau, Benjamin, Fritsch, Emmanuel, Mazzero, Francesco, Gauthier, Jean-Pierre

Publikováno v: Gems & Gemology : the quarterly journal of the Gemological Institute of America
Gems & Gemology : the quarterly journal of the Gemological Institute of America, GIA-Gemological Institute of America, 2011, 47 (4), pp.333
Gems & Gemology : the quarterly journal of the Gemological Institute of America, 2011, 47 (4), pp.333

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b0a0b7b14ed9e7b4eb1ce5544de0ace3
https://hal.archives-ouvertes.fr/hal-00849708

Nouveau gisement d'opales d'Ethiopie dans la Province du Welo : premières informations

Autor: Mazzero, Francesco, Gauthier, Jean-Pierre, Rondeau, Benjamin, Fritsch, Emmanuel, Bekele, Endale

Publikováno v: REVUE DE L'ASSOCIATION FRANCAISE DE GEMMOLOGIE
REVUE DE L'ASSOCIATION FRANCAISE DE GEMMOLOGIE, 2009, 167, pp.4
Revue de Gemmologie
Revue de Gemmologie, 2009, 167, pp.4-5

International audience; A new opal deposit has been recently discovered in the Welo province of Ethiopia. Unlike the opals previously found in the Shewa province, the new material is essentially white body color, resembling Australian opals. Also, in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::32a1eeabb4a37d35e1fcaae4a58e4ab8
https://hal.archives-ouvertes.fr/hal-00433228