Luster is vitreous to greasy. Diaphaneity is transparent to translucent. Crystal System is tetragonal, I 4. Crystal Habits include globular aggregates to 3mm and pseudo- octahedra to 2mm. Cleavage dipyramidal is distinct.
Fracture is conchoidal.
Hardness is approx 4. Associated Minerals include aegirine, cancrinite, natrolite, s randite, sidorenkite, sodalite, steenstrupine, terskite and vuonnemite.