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aeschynite
Un mineral orthorhombic, (Ce,Ca,Fe,Th)(Ti,Nb) 2 (O, OH) 6; radioactive; apare în negru nisipuri şi pegmatites.
- スピーチの一部 noun
- 産業/ドメイン 炭鉱
- カテゴリ 炭鉱全般; Mineral mining
- Government Agency: USBM
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作成者
- CIbanescu
- 100% positive feedback
(Bucharest, Romania)