This is a broad, plate-like Gateway specimen showing yellow uranium mineralization across both exposed edges and recessed areas. Although the brightest deposits are concentrated near one side, fine yellow mineralization is scattered throughout the darker ore-bearing zones, giving the specimen an authentic Colorado Plateau ore appearance.
Measuring approximately 50,000 CPM at 2.5 ounces, it offers strong activity relative to its size. Its larger face and thin profile make it particularly suitable as an educational display, locality example, or comparison specimen alongside more concentrated high-grade uranium ore.
• Weight: 0 lb 2.5 oz (70.9 g)
• Dimensions: approx. 3.50 × 2.12 × 0.64 in (8.9 × 5.4 × 1.6 cm)
• Locality: Gateway, Colorado, USA
• Condition: Natural, unprocessed, no stabilization or enhancement
• Measured Activity: ~50,000 CPM
• Instrument: Pancake Geiger probe
• UV Response: Not tested
• Shipping: Ships legally under UN 2910 – Excepted Radioactive Material
⚠️ Radiation Notice:
This specimen emits measurable ionizing radiation. Avoid prolonged handling and display appropriately.
• Gateway lies within the historic uranium-vanadium country of western Colorado, an area known for sandstone-hosted ore deposits and colorful secondary uranium mineralization.
• Likely uranium minerals: carnotite and/or tyuyamunite
• Non-uranium minerals: quartz-rich sandstone, vanadium-bearing clays or oxides, iron-oxide staining, and possible carbonaceous material
• Activity relative to size: Strong
• Best use cases: educational display, Colorado Plateau locality collection, uranium-vanadium ore comparison, or radioactive element collection
• Best for: uranium mineral collectors, element collectors, mining-history collectors, and educators seeking a visibly mineralized natural ore specimen
This is a broad, plate-like Gateway specimen showing yellow uranium mineralization across both exposed edges and recessed areas. Although the brightest deposits are concentrated near one side, fine yellow mineralization is scattered throughout the darker ore-bearing zones, giving the specimen an authentic Colorado Plateau ore appearance.
Measuring approximately 50,000 CPM at 2.5 ounces, it offers strong activity relative to its size. Its larger face and thin profile make it particularly suitable as an educational display, locality example, or comparison specimen alongside more concentrated high-grade uranium ore.
• Weight: 0 lb 2.5 oz (70.9 g)
• Dimensions: approx. 3.50 × 2.12 × 0.64 in (8.9 × 5.4 × 1.6 cm)
• Locality: Gateway, Colorado, USA
• Condition: Natural, unprocessed, no stabilization or enhancement
• Measured Activity: ~50,000 CPM
• Instrument: Pancake Geiger probe
• UV Response: Not tested
• Shipping: Ships legally under UN 2910 – Excepted Radioactive Material
⚠️ Radiation Notice:
This specimen emits measurable ionizing radiation. Avoid prolonged handling and display appropriately.
• Gateway lies within the historic uranium-vanadium country of western Colorado, an area known for sandstone-hosted ore deposits and colorful secondary uranium mineralization.
• Likely uranium minerals: carnotite and/or tyuyamunite
• Non-uranium minerals: quartz-rich sandstone, vanadium-bearing clays or oxides, iron-oxide staining, and possible carbonaceous material
• Activity relative to size: Strong
• Best use cases: educational display, Colorado Plateau locality collection, uranium-vanadium ore comparison, or radioactive element collection
• Best for: uranium mineral collectors, element collectors, mining-history collectors, and educators seeking a visibly mineralized natural ore specimen
