Deep black, metallic, and historically significant, uraninite is the primary natural ore of uranium and one of the most iconic radioactive minerals ever discovered. This specimen showcases the dense, heavy character that has fascinated mineral collectors, scientists, and historians for generations.
Known historically under names such as pitchblende and cleveite (certain varieties), uraninite played a pivotal role in the development of modern physics. Research on uranium minerals ultimately led to the discoveries of radioactivity, radium, polonium, and the atomic age itself. Some famous uraninite specimens were even involved in the early studies that led to the identification of helium within minerals.
Collectors prize uraninite for its remarkable density, rich black luster, geological significance, and naturally occurring radioactivity. Many specimens also contain associated secondary uranium minerals that can develop colorful alteration coatings ranging from yellow and orange to green.
Specimen Highlights
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Genuine natural uraninite (uranium ore)
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Dense, heavy metallic-black appearance
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Classic collector mineral with historical significance
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Naturally radioactive
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Excellent display piece for mineral, element, and science collections
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Ideal for collectors of uranium minerals, rare elements, and geological specimens
A striking piece of Earth's radioactive history, uraninite remains one of the most sought-after minerals for serious collectors of scientific and geological curiosities.
⚠️ Collector Specimen Only – Handle responsibly and store appropriately. Not intended for consumption, grinding, or industrial use. Natural radioactive minerals should be kept out of reach of children and pets.
Uraninite – The Original Uranium Ore
Deep black, metallic, and historically significant, uraninite is the primary natural ore of uranium and one of the most iconic radioactive minerals ever discovered. This specimen showcases the dense, heavy character that has fascinated mineral collectors, scientists, and historians for generations.
Known historically under names such as pitchblende and cleveite (certain varieties), uraninite played a pivotal role in the development of modern physics. Research on uranium minerals ultimately led to the discoveries of radioactivity, radium, polonium, and the atomic age itself. Some famous uraninite specimens were even involved in the early studies that led to the identification of helium within minerals.
Collectors prize uraninite for its remarkable density, rich black luster, geological significance, and naturally occurring radioactivity. Many specimens also contain associated secondary uranium minerals that can develop colorful alteration coatings ranging from yellow and orange to green.