辉石岩中尖晶石在薄片下呈绿色，为铝含量高、铬含量低的铝尖晶石；
The spinels in pyroxenite xenoliths are aluminum spinel with higher Al content and lower Cr content and green in color in thin sections.
薄片圆屋顶和地下室由连结之间的钢或者铝单位组成。
Lamella domes and vaults consist of inter-connecting steel or aluminium units.
薄片圆屋顶和地下室由连结之间的钢或者铝单位组成。
Lamella domes and vaults consist of inter-connecting steel or aluminium units.
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