groutite

groutite

[′grau̇‚tīt]
(mineralogy)
HMnO2 A mineral of the diaspore group, composed of manganese, hydrogen, and oxygen; it is polymorphous with manganite.
References in periodicals archive ?
The main minerals of this group are: Brucite, Geothite, Diaspore, Bauxite, Lepidocrocite, Manganite, Groutite, Stainierite and Chalcopanite that this project discusses the diaspore minerals and processing of them from the diaspore minerals.