He is a mineralogist and astrobiologist at the Carnegie Institution for Science based in Washington, D.C.

他是位于华盛顿特区卡内基科学研究所物学家和天体生物学家。

The original perovskite was a mineral discovered in the Ural mountains, in Russia, in 1839, and named after Count Lev Perovski, a mineralogist from that country.

最初是 1839 年在俄罗斯乌拉尔山脉发现一种物，并以该国物学家·罗斯基伯爵名字命名。

Assumed metallurgical recoveries and payabilities for all metals and discussion of the basis on which the assumed recoveries and payabilities are derived (metallurgical test work, detailed mineralogy, similar deposits, etc.).

• 假设所有金属冶金回收率和可付款率，并讨论得出假定回收率和可付款率基础（冶金测试工作、详细物学、类似床等）。

But it's still got mineralogical changes, and those go deeper and deeper and deeper over time.

但它物学变化仍在继续，随着时间推移，这些变化会越来越深入。