👉 Agatea is a type of mineral that forms in the Earth's crust and is composed primarily of quartz, feldspar, and other minerals. It is often found in rocks, sandstones, and metamorphic rock formations. Agates are typically white or pale green in color but can vary widely in hue and may be formed from various sources including volcanic ash, sedimentary rocks, and extrusive igneous岩浆。
