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Tsehay Mewcha, Wegeltena (Wegel Tena), Delanta, Welo (Wello; Wollo), Afar Province, Ethiopia

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List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Opal	4.DA.10	SiO₂ · nH₂O

1 entry listed. 1 valid mineral.

References

- Schäfer, K. (2012): Feuer im Wasser: Die Vorkommen von neuartigem Edelopal in Äthiopien. Lapis 37 (2), 13-16 (in German). [with explanation of unusual behaviour during cutting and drying]

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Current server date and time: June 17, 2013 00:09:03