| Raade, Gunnar (2015) Blue, octahedral-substituted beryl from Norway: A case study of beryl and associated phenakite from Nedre Lapplægret, Drag, Tysfjord, Nordland. Norsk Mineralsymposium 2015, 27-36 Eldjarn, Knut (1978) Mineraler i Norge- Fenakitt. NAGS-NYTT, 5 (3) 19-20 |
Nedre Lapplægeret Quarry, Lapplægeret, Drag, Hamarøy, Nordland, Norway