Simple chain structured oxide minerals.
Natural materials and products -> Mineral materials
steel(钢)
limonite(褐铁矿)
crystal(晶体)
space group(空间群)
raw mineral material(矿物原料)
density(密度)
iron(铁)
phase(相)
soot(烟灰)
hardness(硬度)
xonotlite(硬锰矿)
polianite(黝锰矿)