Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Chauviré, Boris, Rondeau, Benjamin, Alexandre, Anne, Chamard-Bois, Sarah, La, Carole, Mazzero, Francesco (2019) Pedogenic origin of precious opals from Wegel Tena (Ethiopia): Evidence from trace elements and oxygen isotopes. Applied Geochemistry, 101. 127-139 doi:10.1016/j.apgeochem.2018.12.028

Advanced
   -   Only viewable:
Reference TypeJournal (article/letter/editorial)
TitlePedogenic origin of precious opals from Wegel Tena (Ethiopia): Evidence from trace elements and oxygen isotopes
JournalApplied Geochemistry
AuthorsChauviré, BorisAuthor
Rondeau, BenjaminAuthor
Alexandre, AnneAuthor
Chamard-Bois, SarahAuthor
La, CaroleAuthor
Mazzero, FrancescoAuthor
Year2019 (February)Volume101
PublisherElsevier BV
DOIdoi:10.1016/j.apgeochem.2018.12.028Search in ResearchGate
Generate Citation Formats
Mindat Ref. ID683545Long-form Identifiermindat:1:5:683545:7
GUID0
Full ReferenceChauviré, Boris, Rondeau, Benjamin, Alexandre, Anne, Chamard-Bois, Sarah, La, Carole, Mazzero, Francesco (2019) Pedogenic origin of precious opals from Wegel Tena (Ethiopia): Evidence from trace elements and oxygen isotopes. Applied Geochemistry, 101. 127-139 doi:10.1016/j.apgeochem.2018.12.028
Plain TextChauviré, Boris, Rondeau, Benjamin, Alexandre, Anne, Chamard-Bois, Sarah, La, Carole, Mazzero, Francesco (2019) Pedogenic origin of precious opals from Wegel Tena (Ethiopia): Evidence from trace elements and oxygen isotopes. Applied Geochemistry, 101. 127-139 doi:10.1016/j.apgeochem.2018.12.028
In(2019) Applied Geochemistry Vol. 101. Elsevier BV

Map of Localities

Locality Pages

LocalityCitation Details
Delanta Woreda, North Wollo Zone, Amhara Region, Ethiopia
Tsehay Mewcha, Delanta Woreda, North Wollo Zone, Amhara Region, Ethiopia
Wegeltena, Delanta Woreda, North Wollo Zone, Amhara Region, Ethiopia

Mineral Occurrences

LocalityMineral(s)
Delanta Woreda, North Wollo Zone, Amhara Region, Ethiopiaⓘ Alkali Feldspar, ⓘ Amphibole Supergroup, ⓘ Basalt, ⓘ Clay, ⓘ Clinopyroxene Subgroup, ⓘ K Feldspar, ⓘ Opal, ⓘ Pyroclastic-rock, ⓘ Quartz, ⓘ Rhyolite, ⓘ Smectite Group, ⓘ Trachyte

See Also

These are possibly similar items as determined by title/reference text matching only.

Chauviré, Boris, Rondeau, Benjamin, Mazzero, Francesco, Ayalew, Dereje (2017) The Precious Opal Deposit At Wegel Tena, Ethiopia: FormationViaSuccessive Pedogenesis Events. The Canadian Mineralogist, 55 (4) 701-723 doi:10.3749/canmin.1700010
Chauviré, B., Rondeau, B., Mazzero, F., Ayalew, D. (2017) The Precious Opal Deposit At Wegel Tena, Ethiopia: Formation VIA Successive Pedogenesis Events. The Canadian Mineralogist, 55:4, 701.
Benjamin Rondeau, Bénédicte Cenki-Tok, Emmanuel Fritsch, Francesco Mazzero, Jean-Pierre Gauthier, Yves Bodeur, Eyassu Bekele, Eloïse Gaillou and Dereje Ayalew (2012) Geochemical and petrological characterization of gem opals from Wegel Tena, Wollo, Ethiopia: opal formation in an Oligocene soil. Geochemistry: Exploration, Environment, Analysis, 12, 93-104, 28 May 2012
Rondeau, Benjamin, Cenki-Tok, Bénédicte, Fritsch, Emmanuel, Mazzero, Francesco, Gauthier, Jean-Pierre, Bodeur, Yves, Bekele, Eyassu, Gaillou, Eloïse, Ayalew, Dereje (2012) Geochemical and petrological characterization of gem opals from Wegel Tena, Wollo, Ethiopia: opal formation in an Oligocene soil. Geochemistry: Exploration, Environment, Analysis, 12 (2). 93-104 doi:10.1144/1467-7873/10-mindep-058
Rondeau, Benjamin, Fritsch, Emmanuel, Mazzero, Francesco, Gauthier, Jean-Pierre, Cenki-Tok, Bénédicte, Bekele, Eyassu, Gaillou, Eloïse (2010) Play-of-Color Opal from Wegel Tena, Wollo Province, Ethiopia. Gems & Gemology, 46 (2) 90-105 doi:10.5741/gems.46.2.90
Rondeau, Benjamin, Chamard-Bois, Sarah, Fritsch, Emmanuel, Notari, Franck, Chauviré, Boris (2018) Reverse dichromatism in gem andalusite related to total pleochroism of the Fe2+-Ti4+ IVCT. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 204. 611-619 doi:10.1016/j.saa.2018.06.053
Gouzy, Simon, Rondeau, Benjamin, Gaudin, Pierre, Louarn, Guy, La, Carole, Lebeau, Thierry, Vinogradoff, Vassilissa, Clodoré, Laura, Chamard-Bois, Sarah (2023) Whitening of fire opal: Transformation of silica in soils. Chemical Geology, 616. 121237 doi:10.1016/j.chemgeo.2022.121237
Rondeau, B., Fritsch, E., Tok, B., Mazzero, F. (2010) New opals from Wollo, Ethiopia: Geochemical characterization. Geochimica et Cosmochimica Acta, 74:12, A880.
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
Rondeau, Benjamin, Gauthier, Jean-Pierre, Mazzero, Francesco, Fritsch, Emmanuel, Bodeur, Yves, Chauvire, Boris (2013) On the Origin of Digit Patterns in Gem Opal. Gems & Gemology, 49 (3) doi:10.5741/gems.49.3.138
Bai, F. (2020) Crystallinity and Play-of-Colour in Gem Opal with Digit Patterns from Wegel Tena, Ethiopia. Minerals 10, 625.
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: June 3, 2026 23:58:35
Go to top of page