Color is usually canary yellow. Luster is pearly to waxy. Diaphaneity is translucent. Crystal System is hexagonal, P 31 m . Crystal Habits include tiny flakes and tabular hexagonal crystals.
Fracture is conchoidal.
Hardness is 2. Associated Minerals include albite, analcime, lovozerite, microcline, natrolite, polylithionite, terskite, ussingite and yofortierite.