Okenite, gyrolite, laumontite

This specimen features a number of snow-white, fibrous, spherical "puffs" of okenite planted between a crystal-lined grey basalt matrix. The cavity goes all the way through with a second okenite, gyrolite, laumontite filled opening on the other side. Often miscategorized as a zeolite, it's actually a silicate, though the mineral usually does occur with zeolites. India produces the biggest and most fine Okenite in the world, no question.  A very distinctive mineral!