4 Gram Lamellar Autunite / Meta-autunite Crystal
Locality: Hunan Province, China
Size: 21x18x11mm
Approximate Weight: 4.0 grams
Radiacode 103: 56,000 CPM (Gamma spectrum, verified in listing photos)
Testing & Lighting: Photos show natural outdoor light, indoor light, and 365nm UV fluorescence
Preservation: Stabilized with Paraloid B-72 acrylic polymer to prevent crumbling and preserve specimen integrity over time
Devices and coin not included
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