Canada (Prairies, Alberta, Peace River / Willow Creek) - Hourglass Selenite

Crystals from these occurrences in Alberta formed within clay-rich sediments, which helped preserve them in exceptional condition by protecting them from weathering and surface damage. They are noted for displaying distinctive fluorescence under UV light, where the twinned crystals exhibit a bright, hourglass-shaped zonal pattern, an effect that is both visually striking and characteristic of this locality. A beautiful and fascinating example of this unique Canadian occurrence, combining classic crystal form with unusual optical properties.