Uraninite (Czech)
A genuine uraninite specimen from the Czech Republic featuring a rich, dark metallic-black uranium mineralisation hosted within a contrasting natural matrix of light-coloured gangue minerals and quartz-rich material. The specimen displays extensive uraninite coverage across much of its surface, creating a striking appearance with a lustrous to sub-metallic sheen that highlights the natural character of this historic uranium ore.
Under magnification, the specimen reveals a fascinating mineralogical landscape, including sparkling crystalline textures, uranium oxide alteration products, and scattered golden metallic flakes. These golden inclusions are believed to be iron pyrite, commonly known as "Fool's Gold", although some display a colour and reflectivity remarkably similar to native gold. While their exact identification has not been confirmed, they add an intriguing visual element and geological mystery to the specimen, making it particularly attractive for collectors and researchers alike.
Microscopic examination also reveals beautiful iridescent mineral coatings displaying vibrant blue, purple, green, and gold colours. These natural surface effects create exceptional visual contrast against the darker uraninite-rich matrix and provide a unique display quality rarely observed without magnification. The combination of massive uraninite, contrasting host rock, possible pyrite mineralisation, and colourful secondary surface features makes this an outstanding collector specimen.
The specimen measures approximately 35 × 30 × 20 mm, weighs approximately 17.1 grams, and is supplied in a protective acrylic display box, ready for display, storage, or collection.
Specifications
Equipment Used To Measure: RADEYE B20-ER
Activity Including (Alpha, Beta & Gamma): 130,000cpm
Mineral: Uraninite (Pitchblende)
Formation: Massive Uraninite with Secondary Mineralisation
Origin: Czech Republic
Weight: Approx. 17.1g
Size: Approx. 35 × 30 × 20 mm
Display: Includes Acrylic Display Box
Features: Natural Uraninite Mineralisation • Possible Iron Pyrite ("Fool's Gold") Inclusions • Iridescent Secondary Mineral Coatings • Quartz-Rich Matrix • Historic Uranium Mining District Specimen
Collector Specimen ☢️
Each specimen is completely natural and unique, preserving mineralogical features formed over millions of years within one of Europe's most famous uranium-producing regions. This specimen offers an exceptional combination of high-grade uraninite, fascinating microscopic textures, possible pyrite mineralisation, and vibrant iridescent surface features. A remarkable example of natural uranium mineralisation and an excellent addition to any radioactive mineral, uranium ore, or geological collection.
We want you to be completely satisfied with your purchase. Returns are accepted within 14 days of delivery. Items must be returned in their original condition, including any display boxes, labels, and packaging supplied with the specimen.
Please note that natural mineral specimens are unique and may contain natural variations, imperfections, and matrix features that form part of their geological character.
Once the returned item has been received and inspected, a refund will be processed to the original payment method.
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