(Tangen bruddet)
Feldspar quarry located 20 m north of Tangen farm, on the east side of the Kammerfosselven about 3-4 km west of the Kragerø town. Collecting at the site is prohibited by the owner.
The pegmatite which is hosted in amphibolites on the western slope of Mt. Sjåen was a irregular body about 40 m in length and 10-15 m wide.
References:
- Andersen, O. (1924) Statsgeologenes innberetninger for 1923. I. Kragerø omegn. Norges Geologiske Undersøkelse 122. Årbok for 1923, p. 9- 18
- Bjørlykke, H. (1937): Mineral parageneses of some granite pegmatites near Kragerø, Southern Norway. Norsk Geologisk Tidsskrift, 17,1-16.
- Green, J.C. (1956): Geology of the Storkollen-Blankenberg area, Kragerø, Norway. Norsk Geologisk Tidsskrift 36, 89-140
- Kristiansen, R. (1978): Lokkaitt, (Y,Ca)2(CO3)3 x 2H2O, ett nytt mineral for Norge. NAGS-nytt 5(4), 26-27 (in norwegian)
- Kristiansen, R. (1994): To nye mineraler for Norge- manganokolumbitt og hingganitt-(Yb). STEIN 21 (2), 88-93
- Ljøstad, O.T. (1994): Kamphaugitt-(Y)- det nyest beskrevne mineralet fra Norge. STEIN 21 (2), 143-144
- Rocks & Minerals: 15:77.
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Map Reference: 58°56'N , 9°28'E
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Mineral List:29 entries listed. 22 valid minerals.
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