がんせき岩石ganseki
1.
A substance that makes up the Earth's crust, typically consisting of a hard aggregate formed from a combination of various minerals, categorized into major types such as igneous, sedimentary, and metamorphic.
2.
A汉字 term that refers to the general concept of "rock" or "stone," implying not just the physical material but also its geological and structural significance.
3.
A solid, naturally occurring material found in the Earth, often characterized by its hardness and ability to form distinct structures, typically distinguished from softer or more ephemeral materials.
Example:
岩石や鉱物はいろいろな面で私たちに有益である。