Stilbite

Stilbite is very common and arguably the most popular zeolite mineral for collectors. Its varied colors include white, colorless, beige, peach, pink, orange, light yellow, brown, and green. It is typically translucent with a vitreous to pearly luster. Its colors, luster, numerous associations with other quality minerals, abundant quantities of quality specimens, and surprising affordability contribute to its popularity. Those aforementioned associations include Heulandite, Apophyllite, Calcite, Analcime, Quartz and Prehnite.

The crystal system for Stilbite is monoclinic. Single crystals are typically thin tabular and flattened with pointed terminations. However, individual crystals are rare; crystals commonly form in platy aggregates, often in curved aggregates of fan-shaped or “wheat sheaf” bundles, and in its signature “bow tie” formation. Other forms include radiating, globular, fibrous, doubly terminated and cruciform (twinned cross-like formations).

Stilbite is a common mineral found worldwide. Notable localities include Canada, Denmark, Iceland, India, Sweden and the USA (Connecticut, New Jersey).

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