Stilbite is a common member of the zeolite group, and is found in most of the world’s important zeolite deposits. Since its original classification, Stilbite was always regarded as a single mineral species with a slightly variable elemental makeup. Stilbite-Ca is the more common type, and almost all Stilbite in collections are of the Stilbite-Ca type. A distinction between the two Stilbite types is rarely made, and most collectors simply refer to this mineral as Stilbite. Large and well-shaped Stilbite crystals are of interest to collectors, especially when in wheat sheaf or bow tie form.
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