$75Median
1Sold (12 mo)
$75Last sale
Phosphuranylite
3 in the gallery
Phosphuranylite is a uranyl phosphate mineral that forms as hydrated crystalline aggregates. It typically presents a yellow to yellow-green coloration and exercises a vitreous to resinous luster as small prisms or tabular crystals, often intergrown in crusts or granular masses. The mineral’s structure accommodates uranyl groups and phosphate groups, contributing to its characteristic brightness under reflected light and its tendency to fluoresce under ultraviolet illumination.
- Formula
- KCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
- Rarity
- Rare
- Stability
- Moderately Stable
- Collector interest
- Very High Interest
Where Phosphuranylite is found
About Phosphuranylite
Notable specimens have been reported from localities in the United States and Germany, among others, where secondary after radioactive alteration in oxidized uranium-bearing environments yields well-formed crystals or crusts. Collectors prize phosphuranylite for its distinctive hue, its association with other uranyl phosphates, and the challenge of finding well-defined crystals that reveal its internal symmetry and optical properties. While relatively uncommon, dedicated collection sites and careful handling due to its uranium content make such finds particularly sought after by seasoned mineral enthusiasts.
