Okenite, from Bombay Quarry, Mumbai, India (REF:O7)

Okenite is a silicate mineral that is usually associated with zeolites. It is most commonly found as small white "cotton ball" formations within basalt geodes. These formations are clusters of straight, radiating, fibrous crystals that are both bendable and fragile.

Zeolite is formed from a group of minerals that commonly occur together. It may be colourless, clear, white, and blue or peach. Apophyllite, Okenite, Pectolite, Prehnite and Stilbite are all in the Zeolite group and are commonly from India.