Mineral: | Circón (Hf)
| Fórmula química: | ZrSiO4 (7% HfO2) | Tamaño: | | Peso: | | Transparencia: | | Número de piezas: | | Origen: | Kyauk Pyat That, al oeste de Mogok, Birmania (Myanmar) | This is an unusual radioactive zircon. The crystal or aggregate has geode-like shape with one round surface one face with radial pattern. This zirconium silicate is rich in Hafnium (7%). The radiation is caused by Uranium and Thorium content. The gamma radiation is 7 µSv/h and the total dosage is 20 µSv/h. Specimen should be handled with care!
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