Tags: Chemical Substance, Mineral.
In geology the mineral hubeite Ca2Mn2+Fe3+[Si4O12(OH)] (H2O)2 is a sorosilicate of the Si4O13 group. Structurally it also belongs to the Akatoreite group. It was found and named after the province of Hubei China. It is common to iron ores in a mine of that region. Occurs mainly as aggregates of fan like crystals that intergrown. It is dark to pale brown has orange-brown streak and is vitreous. Hubeite has a hardness of 5.5 in the Mohs scale one good cleavage and conchoidal fracture.
