Cleavage has not been observed.
Fracture is conchoidal.
Hardness is 4. Streak is white. Associated Minerals include aegirine, albite, analcime, astrophyllite, calcite, epididymite, fluorite, franconite, gaidonnayite, leucophanite, mangan-neptunite, microcline, natrolite, polylithionite, pyrochlore, rhabdophane, rhodochrosite, rutile, s randite, siderite, sphalerite and thomsonite.