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Madagascar | |
- Vakinankaratra Region (Betafo - Antsirabé region)
| De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103. |
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| Demartin, F. et al (2001): Schiavinatoite,(Nb,Ta)BO4, the Nb analogue of behierite. European Journal of Mineralogy 13, 159-165 |
- Tetezantsio-Andoabatokely Pegmatite Field
| Knut Edv.Larsen collection |
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| Knut Edvard Larsen collection |
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| Dominico Preite photo & collection |
- Tuléar (Toliara) Province
- Anosy (Fort Dauphin) Region
| Pezzotta, F.(2004): Der Pegmatit von Anjahamiary bei Fort Dauphin, Madagaskar. LAPIS 29 (2): 24-28 |
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Russia | |
- Transbaikalia (Zabaykalye)
| Natural History Museum Vienna collection |