Natural Pollucite Crystal
The Regal
Pollucite is a caesium-rich member of the zeolite group, formed in the late pockets of lithium–caesium–tantalum pegmatites. It is common enough as a massive, cloudy material and exceptionally rare as a clean, transparent crystal large enough to facet.
The Regal is a near-colourless cushion of 39.71 ct, cut in a combined brilliant and step pattern, and documented in an independent laboratory report as natural pollucite with no detected treatments.
Rarity Score: 9.2 / 10
Reference stones
- Iceflake · JDBG Collection · 46.32 ct
- Pollucite Crystal · Smithsonian · 28.25 ct
Location: Stockholm · Private collection · JDBG GEMS
A matter of scale
Faceted pollucite is normally seen in single-digit carat weights, and institutional reference specimens, including the pollucite in the Smithsonian's National Gem Collection, are considerably smaller. At 39.71 ct The Regal stands among the largest documented faceted pollucites we have traced.
Smithsonian reference specimen →Why it is difficult
Pollucite is soft for its class (Mohs 6½), brittle, and prone to internal veiling. Clean rough survives cutting only when the cutter works slowly and accepts low yield.
Provenance
Acquired as part of a single-lot parcel of rare collector stones; chain of custody is documented from the cutting workshop to the Institute.
Documentation
Verification is in progress. Laboratory documentation, photographic record and acquisition history are held on file and shared in full with serious enquirers.