系晶状体菱镁矿，块状，多为白色，比重2.9-3.1，莫式硬度3.5-4.5、普式硬度F=6-8，是生产轻烧镁、重烧镁 和电熔镁的理想原料。
It is crystallized in the form of lumps,usually white,with a specific gravity of 2.9-3.1 and a hardiness of f=6-8.It is the ideal raw material for producing caustic calcined magnesia,dead burned magnesite and electric fused magnesia.
| 化学成分(%) Chemical Compositions | ||||
| 品牌 Brand | MgO≥ | SiO2≤ | CaO≤ | 粒度 Grain Size(mm) |
| LM-47 | 47 | 0.6 | 0.6 | 各种规格粒度 All Grain Sizes |
| LM-46 | 46 | 1.2 | 0.8 | |
| LM-45 | 45 | 1.5 | 1.5 | |
