4.5" Extremely Fluorescent Andersonite Aggregation - Uranium Based

Andersonite (Na2Ca(UO2)(CO3)3 · 6H2O) is a rare, secondary uranium carbonate mineral that forms as small, bright to dull yellowish-green, translucent rhombohedral crystals, and as fine-grained druzy crystal aggregates. It is found in the oxidized zones of uranium-bearing hydrothermal polymetallic deposits, and can also be found coating the walls of mining tunnels following extended exposure to oxygen. It is extremely fluorescence under both long and shortwave ultraviolet light, glowing a bright neon yellow-green.

Radiation Safety - Because andersonite is uranium-based, it is mildly radioactive. The specimens we measured put off between 0.5 and 4 µSv/hour with the detector right up against the specimen. This is the equivalent to around 3 to 24 times greater than typical background radiation in a city. No increase in radiation could be measured a foot from the specimen.

While this level of emitted radiation shouldn't cause any concern for intermittent handling, it is probably advisable not to have close contact for extended periods of time. Care should also be taken to avoid inhaling or ingesting dust from these samples. We also recommend washing hands after handling.