| Locality type: | Quarry |
| Classification |
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| Species: | Yttrotantalite-(Y) |
| Formula: | (Y,U4+,Fe2+)(Ta,Nb)(O,OH)4 |
| Confirmation |
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| Validity: | Believed Valid |
| References |
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| References: | Andersen, O. (1931): Feltspat II. Forekomster i fylkene Buskerud og Telemark, i flere herreder i Aust-Agder og i Hidra i Vest-Agder. Norges Geologiske Undersøkelse 128b,1-109 [p.76] |
| Data |
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| Mineral Data: | Click here to view Yttrotantalite-(Y) data |
| Locality Data: | Click here to view Hella 1 Feldspar Quarry, Helle, Stokken, Arendal, Aust-Agder, Norway |
| Nearest other occurrences of Yttrotantalite-(Y) |
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| 25.9km (16.1 miles) | | ⓘBjortjønn (Bjortjenn; Bjortjørn), Hynnekleiv, Froland, Aust-Agder, Norway |
| 52.3km (32.5 miles) | | ⓘLjosland 11 Feldspar Quarry, Ljosland, Iveland, Aust-Agder, Norway |
| 52.5km (32.6 miles) | | ⓘLjosland 10 Feldspar Quarry (Storsynken), Ljosland, Iveland, Aust-Agder, Norway |
| 54.3km (33.7 miles) | | ⓘSolås Pegmatite, Iveland, Aust-Agder, Norway |
| 56.7km (35.2 miles) | | ⓘRossås 04 Feldspar Quarry, Rossås (Rosås), Iveland, Aust-Agder, Norway |
| 58.3km (36.2 miles) | | ⓘLi, Evje og Hornnes, Aust-Agder, Norway |
| 71.4km (44.4 miles) | | ⓘHeftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway |
| 75.8km (47.1 miles) | | ⓘHøydalen (Høydalen seter), Tørdal, Drangedal, Telemark, Norway |