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Tveitite-(Y) : (Y, Na)6Ca6Ca6F42 | |
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Birkeland, Iveland, Aust-Agder, Norway A 2,5 cm specimen of massive Tveitite-Y from a pegmatite at Birkeland, Iveland, Aust-Agder, Norway. Specimen and photo: Knut Eldjarn. |
| © Knut Eldjarn | Photo ID: 53493 View Count: 799 |
Tveitite-(Y) : (Y, Na)6Ca6Ca6F42, Kamphaugite-(Y) : Ca(Y,REE)[OH|(CO3)2] · H2O | |
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Høydalen (Høydalen seter), Tørdal, Drangedal, Telemark, Norway A 1 cm mass of yellowish-white Tveitite-Y rimmed by white Kamphaugite-Y embedded in Quartz from the type locality at Høydalen, Tørdal, Telemark, Norway. Field of view: 2 cm. Specimen and photo: Knut Eldjarn |
| © Knut Eldjarn | Photo ID: 53492 View Count: 421 |
Tveitite-(Y) : (Y, Na)6Ca6Ca6F42 | |
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Høydalen (Høydalen seter), Tørdal, Drangedal, Telemark, Norway A sawn part of the holtype Tveitite, a chunk about 7 cm long. Excibited in the typelocality minerals of Norway cabinet, in the Geological Museum of Oslo. Picture was taken 9. Des. 2007. |
| © Peter Andresen | Photo ID: 138503 View Count: 272 |
Tveitite-(Y) : (Y, Na)6Ca6Ca6F42 | |
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Høydalen (Høydalen seter), Tørdal, Drangedal, Telemark, Norway Massive tveitite-(Y) embedded in quartz. Field of view: 4 mm Photo and collection Antonio Borrelli |
| © Antonio Borrelli | Photo ID: 155589 View Count: 122 |
Tveitite-(Y) : (Y, Na)6Ca6Ca6F42 | |
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West Keivy Block, Western Keivy Massif, Kola peninsula, Murmanskaja Oblast', Northern Region, Russia 2.5x2 cm monograin fragment of pinksh tveitite-(Y) from pegmatite of alkaline granites. Microprobe and PXRD confirmed. Mineral has distinct yellow SW UV fluorescention. Collected by Igor V. Pekov in 2006 on Rovgora Mt. This material described in the article Pekov I.V. e.a. (2008): Tveitite-(Y) and rare-earth enriched fluorite from amazonite ... |
| © Pavel M. Kartashov | Photo ID: 150786 View Count: 150 |
Tveitite-(Y) : (Y, Na)6Ca6Ca6F42 | |
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West Keivy Block, Western Keivy Massif, Kola peninsula, Murmanskaja Oblast', Northern Region, Russia 2.5x2 cm monograin fragment of pinksh tveitite-(Y) from pegmatite of alkaline granites. Microprobe and PXRD confirmed. Mineral has distinct yellow SW UV fluorescention. Collected by Igor V. Pekov in 2006 on Rovgora Mt. This material described in the article Pekov I.V. e.a. (2008): Tveitite-(Y) and rare-earth enriched fluorite from amazonite ... |
| © Pavel M. Kartashov | Photo ID: 150784 View Count: 119 |
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