Chromites,which are accessory minerals in the ultramafic intrusion,can be classified as three types: occurring as inclusions in olivine;as euhed.

• 铬铁矿以副矿物形式出现,从形态上可以分为三类:包嵌于橄榄石中的自形铬铁矿、以自形或半自形体存在于辉石中铬铁矿以及环绕结构铬铁矿。