Cronstedtite

Properties

Formula (FeII,FeIII)3(Si,FeIII)2O5(OH)4
Abbreviation Cro
Classification Serpentine (subgroup)
IMA Status Grandfathered (pre-IMA), 1821
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Trigonal
Tags Hydroxide , Mineral, Silicate

Composition

Element Atoms
O 9
H 4
Si ~1
Fe ~4