Color ranges from colorless to very pale yellow and white to tan.
Luster is vitreous. Diaphaneity is transparent to translucent. Crystal Habits include hexagonal plates, stacked rosettes and equant crystals. Streak is white. Associated Minerals include aegirine, albite, analcime, calcite, eudialyte, microcline, natrolite, pyrite, rutile, s randite, siderite, sodalite and ussingite.