Forsterite:
The raw ore contains a large amount of CaO and Ai2O3, which is easy to absorb water and self-powder, so it is not suitable to be used as refractory material. After water washing, it can be used as steel casting sand with poor reusability. Or as an additive for blast furnace ironmaking.
Magnesium-rich olivine:
M2S in the raw ore has high mineral content, high hardness, and very low content of harmful impurities affecting the fire resistance, so it is a high-quality alloy steel molding sand material and a good refractory material. It can also be used as an additive for blast furnace ironmaking.
After crushing
If it is used for casting, it is better to use calcined olivine. Raw meal contains free SIO2, which produces a large amount of flue gas during casting
