the study of the weight of metals and minerals.

the branch of geology that deals with the formation, occurrence, and exploitation of mineral deposits.

The formation of mineral deposits, esp. as related to petrographic and tectonic features. Also: the branch of geology that deals with this.

The branch of science that deals with the physical and chemical microstructure of minerals, esp. as observed through the study of polished mineral…

= mineralography, n.

The formation of minerals; = metallogeny, n.

the branch of geology concerned with the formation, occurrence, and exploitation of oil and natural gas.

= metallogeny, n.