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Lore Kiefert, Pierre Hardy, Tewodros Sintayehu, Begosew Abate, and Girma Woldetinsae (2014) New Deposit of Black Opal from Ethiopia. Gems & Gemology Winter 2014, Vol. 50, No. 4

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Year2014
Original EntryLore Kiefert, Pierre Hardy, Tewodros Sintayehu, Begosew Abate, and Girma Woldetinsae (2014) New Deposit of Black Opal from Ethiopia. Gems & Gemology Winter 2014, Vol. 50, No. 4
Mindat Ref. ID16095049Long-form Identifiermindat:1:5:16095049:2
GUID0
Full ReferenceLore Kiefert, Pierre Hardy, Tewodros Sintayehu, Begosew Abate, and Girma Woldetinsae (2014) New Deposit of Black Opal from Ethiopia. Gems & Gemology Winter 2014, Vol. 50, No. 4
Plain TextLore Kiefert, Pierre Hardy, Tewodros Sintayehu, Begosew Abate, and Girma Woldetinsae (2014) New Deposit of Black Opal from Ethiopia. Gems & Gemology Winter 2014, Vol. 50, No. 4

Map of Localities

Locality Pages

LocalityCitation Details
Gashena, Wadla Woreda, North Wollo Zone, Amhara Region, Ethiopia

Mineral Occurrences

LocalityMineral(s)
Gashena, Wadla Woreda, North Wollo Zone, Amhara Region, Ethiopiaⓘ Basalt, ⓘ Clay, ⓘ Ignimbritic tuff, ⓘ Opal, ⓘ Rhyolite

See Also

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Lore Kiefert, Pierre Hardy, Tewodros Sintayehu, Begosew Abate, and Girma Woldetinsae (2014) New Deposit of Black Opal from Ethiopia. Gems & Gemology Winter 2014, Vol. 50, No. 4
Kan-Nyunt, Hpone-Phyo; Karampelas, Stefanos; Link, Klemens; Thu, Kyaw; Kiefert, Lore; Hardy, Pierre (2014) Blue Sapphires from the Baw Mar Mine in Mogok. Gems & Gemology, 49 (4). 223-232 doi:10.5741/gems.49.4.223
Kiefert, Lore, Wang, Chengsi, Sintayehu, Tewodros, Link, Klemens (2019) Sunstone Labradorite-Bytownite from Ethiopia. The Journal of Gemmology, 36 (8) 694-696 doi:10.15506/jog.2019.36.8.694
Gems and Gemology, Summer 2014, Vol. 50 No. 2
Gems & Gemology, Summer 2014 Vol. 50 No. 2
Kiefert, Lore, Schmidt, Susanne Th. (1996) Some Tanzanite Imitations. Gems & Gemology, 32 (4) 270-276 doi:10.5741/gems.32.4.270
Schmetzer, Karl, Kiefert, Lore, Bernhardt, Heinz-Jürgen (2000) Purple to Purplish Red Chromium-Bearing Taaffeites. Gems & Gemology, 36 (1) 50-58 doi:10.5741/gems.36.1.50
Schmetzer, Karl, Hainschwang, Thomas, Bernhardt, Heinz-Jürgen, Kiefert, Lore (2002) New Chromium- and Vanadium-Bearing Garnets from Tranoroa, Madagascar. Gems & Gemology, 38 (2) 148-155 doi:10.5741/gems.38.2.148
Kiefert, Lore, Hänni, H. A. (2000) Gem-Quality Haüyne from the Eifel District, Germany. Gems & Gemology, 36 (3) 246-253 doi:10.5741/gems.36.3.246
Schmetzer, Karl, Hainschwang, Thomas, Kiefert, Lore, Bernhardt, Heinz-Jürgen (2001) Pink to Pinkish Orange Malaya Garnets from Bekily, Madagascar. Gems & Gemology, 37 (4) 296-308 doi:10.5741/gems.37.4.296
Schmetzer, Karl, Kiefert, Lore, Bernhardt, Heinz-Jürgen, Beili, Zhang (1997) Characterization of Chinese Hydrothermal Synthetic Emerald. Gems & Gemology, 33 (4) 276-291 doi:10.5741/gems.33.4.276
 
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