我们通过化学分析知道矿物的构成。

We know the constitution of mineral through chemical analysis.

youdao

然而，有些钻石含有硅酸盐矿物的微小包裹体，通常是橄榄石、辉石和石榴石。

However, some diamonds contain minute inclusions of silicate minerals, commonly olivine, pyroxene, and garnet.

youdao

因此，本世纪能源和矿物的实际价格已经下降了。

For this reason prices for energy and for minerals have fallen in real terms during the century.

youdao