A small granite pegmatite probably genetically associated with the ekerite of the Oslo region (Raade 1996). Protected locality of historical and geological interest, first collecting already ca 1780.
Ref:
- Raade, G. (1996): Minerals originally described from Norway. Bergverksmuseet Skrift 11, 107 pp [on Acmite(= aegirine) from Rundemyr]