This is a high-activity uranium specimen featuring vivid yellow carnotite/tyuyamunite mineralization over a rugged host rock matrix. The contrast between the bright secondary uranium minerals and the darker oxidized zones gives this piece strong visual character, while also indicating active geologic processes that concentrated uranium along fractures. You’re not just getting radiation—you’re getting a piece that shows how uranium moves and forms in nature.
Despite its compact size, this specimen delivers serious performance at ~70,000 CPM on a pancake probe, making it an excellent “pocket powerhouse” for collectors. Pieces like this are ideal for demonstrating detector response, comparing instruments, or simply owning a high-output specimen without needing a large display footprint.
• Weight: 1.7 oz (48 g)
• Dimensions: approx. 2.28 × 2 × 0.87 in
• Locality: Colorado Plateau
• Condition: Natural, unprocessed, no stabilization or enhancement
• Measured Activity: ~70,000 CPM
• Instrument: Ludlum Model 3 with 44-9 pancake probe
• Dose Rate: ~4.5 mR/hr (Ludlum Model 9 ion chamber)
• UV Response: None for carnotite
• Shipping: Ships under UN 2910 – Excepted Radioactive Material
⚠️ Radiation Notice:
This specimen emits measurable ionizing radiation. Avoid prolonged handling and display appropriately.
• Activity Level: Strong for its size
• Best Use Cases: Warning! Fragile piece. Detector testing, educational display, high-CPM comparison specimen, compact collection highlight
• Who This Is Best For: Intermediate to advanced collectors, or beginners wanting a “wow” piece without going large
This is a high-activity uranium specimen featuring vivid yellow carnotite/tyuyamunite mineralization over a rugged host rock matrix. The contrast between the bright secondary uranium minerals and the darker oxidized zones gives this piece strong visual character, while also indicating active geologic processes that concentrated uranium along fractures. You’re not just getting radiation—you’re getting a piece that shows how uranium moves and forms in nature.
Despite its compact size, this specimen delivers serious performance at ~70,000 CPM on a pancake probe, making it an excellent “pocket powerhouse” for collectors. Pieces like this are ideal for demonstrating detector response, comparing instruments, or simply owning a high-output specimen without needing a large display footprint.
• Weight: 1.7 oz (48 g)
• Dimensions: approx. 2.28 × 2 × 0.87 in
• Locality: Colorado Plateau
• Condition: Natural, unprocessed, no stabilization or enhancement
• Measured Activity: ~70,000 CPM
• Instrument: Ludlum Model 3 with 44-9 pancake probe
• Dose Rate: ~4.5 mR/hr (Ludlum Model 9 ion chamber)
• UV Response: None for carnotite
• Shipping: Ships under UN 2910 – Excepted Radioactive Material
⚠️ Radiation Notice:
This specimen emits measurable ionizing radiation. Avoid prolonged handling and display appropriately.
• Activity Level: Strong for its size
• Best Use Cases: Warning! Fragile piece. Detector testing, educational display, high-CPM comparison specimen, compact collection highlight
• Who This Is Best For: Intermediate to advanced collectors, or beginners wanting a “wow” piece without going large
