sjogrenite
noun
sjo·gren·ite
ˈshōgrəˌnīt,
ˈshə(r)g-
plural -s
: a mineral Mg6Fe2(OH)16(CO3).4H2O consisting of a hydrous hydroxide and carbonate of magnesium and iron isomorphous with manasseite and barbertonite
Word History
Etymology
Swedish sjögrenit, from Hjalmar Sjögren †1922 Swedish mineralogist + Swedish -it -ite