melilite

1.Depending on the chemical composition the structural parameters of the melilite vary in the range between gehlenite and mernite.Melilitic separation and melilite as a primary phase are very rare.

黄长石的结构参数，按其化学成分是黄长石和镁黄长石之间变化，黄长石作为原始矿物相碱矿渣中比较罕见。

2.The practice showed that the blast furnace slags mainly consisted of melilite,cuspidine,bivalent metallic sulphide and Ce-Ca silica.

结果表明:黄长石、枪晶石、二价金属硫化物、石是构成高炉渣的主要矿物。