Colorless, white, sometimes greenishgrayish, yellowish, or reddish white.
Habit: euhedral crystals, granular, massive.
Color: white, grayish white, greenish
white, yellowish white, or reddish white.
Diaphaneity: transparent to translucent.
Luster: vitreous (i.e., glassy).
Luminescence: fluorescent.
Streak: white.
Cleavage: (100) poor.
Fracture: Subconchoidal, uneven.
Twinning: {100}, {110}.
Occurrence: occurs frequenty in basalts and other basic igneous rocks associated
with other zeolites.
For grain mounts, XRD and microprobe standards, indentification of unknown minerals
A mineral, one of the zeolites.
