钙铝黄长石

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.

黄长的结构参数，按其化学成分是在钙铝黄长和镁黄长之间变化，黄长原始相在碱中比较罕见。