The Hainan iron ore as bedding material didn't crack and could remove crystal water and sulfur impurity during the course of sintering.

在烧结过程中，海南矿铺底料不发生爆裂，可以脱除结晶水及硫等有害杂质。

youdao

In the course of forming and evoluting, the gold ore forms through the activating, migrating and concentrating of gold element caused by the activity of the magmatic evaporating composition.

在花岗质岩浆形成和演化过程中，由于岩浆挥发组分的活动，使金元素发生活化、迁移和富集而形成金矿床。

youdao

These are very rough estimates, and in any event there is of course a wide gap between the value of refined metal and the value of buried ore.

FORBES: The Promoter