Andersonite
Mineral Na2Ca(UO2)(CO3)3·6H2O
Take care.
- Radioactive: Keep it in a closed, labelled box away from where people sit or sleep, handle it briefly, wash your hands after, and never grind or cut it.
About it
Bright yellow-green rhombohedral crystals and crusts that glow vivid green under UV, often forming on mine walls after mining. Radioactive; first found at the Hillside mine, Arizona, and known from Utah uranium mines.
- Type
- Mineral
- Group
- Carbonate (uranyl carbonate)
- Formula
- Na2Ca(UO2)(CO3)3·6H2O
- Hardness (Mohs)
- 2.5
- Specific gravity
- 2.8–2.87
- Lustre
- vitreous (glassy), pearly
- Crystal system
- Trigonal
- Colours
- bright yellow-green
- Transparency
- transparent, translucent
- Under UV light
- brilliant green under UV
Typical values: real specimens vary. For more, see mindat.org.