It`s made from periclasite,magnesite aluminium spinel,chrome ore as raw material.

以方镁石、镁铝尖晶石、铬矿为主晶相的中性耐火制品。

Sometimes the composition mineral besides the antigorite and the chrysotile, contains the few dolomite, the magnesite, the tremolite and the olivine and so on.

组成矿物除叶蛇纹石和纤蛇纹石外，有时含少量的白云石、菱镁矿、透闪石和橄榄石等。