>>37133726There are igneous rocks (formed from solidified lava), sedimentary rocks (formed from particle compaction), and metamorphic rocks (formed underground from heat and pressure).
The ground comprises the nature of the floor being stood upon and what it can do to you, the interaction of tectonic plates, and the layers of the planet beneath the surface level.
Steel is the reinforced combination of multiple metallic elements, with an iron base, meant to capture the rigidity and toolmaking capability of a magnetic material -- that can range from blades to tech.
