Multiple crystals of Clinoptilolite in a spectacular small cabinet matrix presentation. One of the rarest zeolite crystalline minerals, the deep space in which the crystals formed preserved them perfectly. Clear with a hint of green, on a base of contrasting white Mordenite. One of the best examples we have seen! Nashik, Maharashtra, India. 2.25" x 1.5" 2.25", 5 oz.