Alleghanyite

Properties

Formula MnII5(SiO4)2(OH)2
Abbreviation Alh
Classification Manganhumite (subgroup)
IMA Status Grandfathered (pre-IMA), 1932
Search other databases webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Related materials Ribbeite
Crystal symmetry Monoclinic
Tags Mineral, Silicate , Hydroxide

Composition

Element Atoms
Si 2
O 10
H 2
Mn 5
Total: 19