Montmorillonite from selected localities.
Norway | |
| Larsen, A.O., à sheim, A. and Gault, R. A. (2005): Minerals of the eudialyte group from the SagÄsen larvikite quarry, Porsgrunn, Norway. Norsk Bergverksmuseum Skrifter 30: 58-62 |
| Larsen, A.O. & Ă sheim, A.(1976): Mineraler fra Langangen. NAGS-nytt 3(1),9-12. (in norwegian) |
SagÄsen Quarry, SagÄsen, Auenlandet, Porsgrunn, Telemark, Norway