It is identical in physical appearance and in association to the more common fluorapophyllite. Luster is vitreous to pearly. Diaphaneity is transparent to translucent.
Fracture is uneven.
Hardness is 4.5 - 5. Streak is white. Associated Minerals include aegirine, albite, amphibole group, ancylite, biotite, calcite, catapleiite, fluorite, galena, leucosphenite, molybdenite, monteregianite, narsarsukite, natrolite, pectolite, phlogopite, polylithionite, pyrrhotite, quartz, stillwelite, titanite, vesuvianite and zircon.