Cookeite

Image

Cookeite specimen from Haddam Neck, Middlesex Co., Connecticut, United States

© Photo by Steve Taub, via Smithsonian National Museum of Natural History

Properties

Formula (Al,Li)3Al2(Si,Al)4O10(OH)8
Abbreviation Ckt
Classification Chlorite (group)
Luminescence emitter O
IMA Status Grandfathered (pre-IMA), 1866
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Hydroxide , Mineral, Aluminosilicate

Composition

Element Atoms
Si 3
Li 1
O 18
H 8
Al 5
Total: 35

Reference

Reference Lines Spectra Images
Kuznetsov et al. 1991 1 0 0