O) is a silicate mineral
that is usually associated with zeolites
. It most commonly is found as small white "cotton ball" formations within basalt geodes
. Other minerals associated with okenite include gyrolite
It was first described in 1828 for an occurrence at Disko Island, Greenland and named for German naturalist Lorenz Oken (1779-1851).
Okenite is largely found in India, mainly within the state of Maharashtra. Other localities include Bulla Island, Azerbaijan; Aranga, New Zealand; and Bordo Island.