Old feldspar quarrys 7 km west of Vigeland. A granite pegmatite embedded in farsundite rock.
References:
- Nilssen, B. (1970): Samarskites. Chemical composition, formula and crystalline phases produced by heating. Norsk Geologisk Tidsskrift 50, 357-373 [Analysis on samarskite from Rømteland]
- Sverdrup,T.L.,Bryn, K.Ø. & Sæbø, P.Chr.(1959): Contributions to the mineralogy of Norway. No. 2. Bastnäsite, a new mineral for Norway. Geologisk Tidsskrift 39, 237-247