A granite pegmatite dyke situated in the northern part of Iveland pegmatite district. It has been worked for rare minerals (thorveitite, gadolinite and euxenite)
Ref:
- Neumann, H. & Sverdrup, T.L.(1960): Contributions to the mineralogy of Norway No. 8. Davidite from Tuftan, Iveland. Norsk Geologisk Tidsskrift 40: 277-288