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Høydalen (Høydalen seter), Tørdal, Drangedal, Telemark, Norway

Photo: K.E.Larsen

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Høydalen, Tørdal, Drangedal kommune, Telemark fylke, Norge

The Høydalen locality consists of 2 separate amazonite pegmatite dykes, which is situated a few hundred meters apart. The pegmatites are hosted in a Precambrian metamorphosed gabbroic rock. Both pegmatite dykes has been worked as 2 different quarries; the upper and lower quarries. Lepidolite was mined here in the period 1941-43. Occasional blasting during the years has revealed several mineral species. It is the type locality of tveitite-(Y).

For a period the quarries were opened as a touristic collecting site with an entrance fee. The quarries are now abandoned. Collecting at dumps is not allowed without permission from the landowner!

Mineral List

51 entries listed. 42 valid minerals. 1 type locality (valid mineral).

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

- Oftedal, I. (1942): Lepidolit-og tinnsteinsførende pegmatitt i Tørdal, Telemark. Norske Geologisk Tidsskrift 22: 1-14

- Sverdrup, T.L., Sæbø,P.Chr. & Bryn, K.Ö. (1965): Contribution to the Mineralogy of Norway No. 31. Tysonite (fluocerite), a new mineral for Norway. Norsk Geologisk Tidsskrift 45: 177-188

- Sverdrup, T. L. (1968): Contributions to the Mineralogy of Norway No. 37. Yttrofluorite-yttrocerite-cerfluorite in norwegian pegmatites. Norsk Geologisk Tidsskrift 48: 245-252

- Bergstøl, S.; Jensen, B.B. & Neumann, H. (1977): Tveitite, a new calcium yttrium fluoride. LITHOS 10: 81-87

- Ash, L.A., Evans, S. & Hiorns, A.G. (1987): Cation ordering in lepidolite and biotite studied by x-ray photoelectron diffraction. Clay Minerals (1987) 22, 375-386 [material from Høydalen used in the study]

- Raade, Sæbø, Austrheim & Kristiansen (1993): Kuliokite-(Y) and its alteration products kainosite-(Y) and kamphaugite-(Y) from granite pegmatite in Tørdal, Norway, European Journal of Mineralogy: 5: 691-698

- Ljøstad, O.T. (1994): Kamphaugitt-(Y)- det nyest beskrevne mineralet fra Norge. STEIN 21 (2), 143-144

- Kristiansen, R. (1998a): Høydalen Litium-pegmatitt-Tørdal i Telemark. Norsk Bergverksmuseum Skrift. 14, 17-28

- Kristiansen, R. (1998b): Høydalen Litium-pegmatitt-Tørdal i Telemark. STEIN 25 (4), 21-30

- Kristiansen, R. (2008): Nye mineralfunn i Norge. STEIN 35 (1): 17-21 [on the find of bazzite]

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Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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