Schröckingerite

Schröckingerite is a radioactive yellow uranium-containing carbonate mineral, hydrated sodium calcium uranyl sulfate carbonate fluoride.^[3][4][5] Schröckingerite crystallizes in the orthorhombic system, occurring as globular clusters, and fluoresces yellow-green under ultraviolet light.

Schröckingerite in UV-light

Schröckingerite
General
Category	Carbonate minerals
Formula	NaCa3(UO2)[F|(CO3)3(SO4)]·10(H2O)[1]
IMA symbol	Srö[2]
Strunz classification	5.EG.05
Crystal system	Triclinic
Crystal class	Pinacoidal (1) (same H-M symbol)
Space group	P1
Identification
Other characteristics	Radioactive

Schröckingerite was first described in 1783 from an occurrence in Jáchymov, Bohemia, Czech Republic, and named for its discoverer, Julius Freiherr Schröckinger von Neudenberg (1814–1882).^[3][5]