It was first collected by Gilles Haineault in 1992 and designated UK-96. It is a very late-stage, low temperature, hydrothermal phase in cavities in an alkaline pegmatite dike in the nepheline syenite associated with a large number of species.
Color is usually colourless to white, sometimes pale pink.
Luster is vitreous. Diaphaneity is transparent to translucent. Crystal Habits include flattened acicular to fibrous crystals to 2.5cm, usually forming spherical groups of radiating crystals. Hardness is 3.