Tetraferriannite

Properties

Formula KFeII3(Si3FeIII)O10(OH)2
Abbreviation Tfann
Classification Biotite
IMA Status Approved/renamed (IMA 1998 s.p.)
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Tags Hydroxide , Mineral, Silicate

Composition

Element Atoms
K 1
Si 3
O 12
H 2
Fe 4
Total: 22