Schröckingerite
Mineral NaCa3(UO2)(CO3)3(SO4)F·10H2O
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
Greenish-yellow scaly rosettes and crusts that glow bright yellow-green under UV, often in clay near uranium deposits. Radioactive; Wyoming's Red Desert and Jáchymov, Czechia, are known sources.
- Type
- Mineral
- Group
- Carbonate (uranyl carbonate with sulfate)
- Formula
- NaCa3(UO2)(CO3)3(SO4)F·10H2O
- Hardness (Mohs)
- 2.5
- Specific gravity
- 2.5–2.55
- Lustre
- vitreous (glassy), pearly
- Crystal system
- Triclinic
- Colours
- greenish yellow, yellow
- Transparency
- transparent, translucent
- Cleavage and fracture
- perfect basal
- Under UV light
- bright yellow-green under UV
Typical values: real specimens vary. For more, see mindat.org.