Creedite

Image

Creedite specimen from Akchatau, Shet District, Karaganda, Kazakhstan

© Photo by Chip Clark, via Smithsonian National Museum of Natural History

Properties

Formula Ca3Al2(SO4)(OH)2F8ยท2H2O
Abbreviation Cee
Luminescence emitters Ce, Dy, O, Tb
IMA Status Grandfathered (pre-IMA), 1916
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Hydrated , Hydroxide , Mineral, Sulphate , Halide

Composition

Element Atoms
H 6
S 1
O 8
Ca 3
Al 2
F 8
Total: 28

References

Reference Lines Spectra Images
Gorobets and Rogojine 2002 1 0 0
Rogozhin et al. 1982 3 0 0