red iron stone

• 赤铁矿

red iron stone的用法和样例：

例句

1. Most of them are painted red with bloodstone powder and ox blood.
   南系岩画大都以红色涂绘，颜料是以赤铁矿粉调合牛血等而成的。
2. Oolitic hematite is considered as one of the most refractory iron ore type.
   鲕状赤铁矿石是目前国内外公认的最难选的铁矿石类型之一。