In calcite veins in sills of albite diabase in schist, associated with low-grade uranium mineralization, almost exclusively as an alteration product of wilkmanite.
IMA Status:
Approved IMA 1964
Locality:
Kuusamo, northeastern Findland. Link to MinDat.org Location Data.
Name Origin:
Named for Gunner Kullerud, Geophisical Laboratory, Washington, D.C., USA.
Chemical Formula: 