Synopsis

Our world is built upon stone – the Earth's very surface. These stones fall into three primary categories: igneous, sedimentary, and metamorphic, each born from a distinct process. Igneous rocks originate from cooled lava flows. Sedimentary rocks assemble from fragments of other rocks, cemented together over time. Metamorphic rocks arise when existing rocks are subjected to intense heat and pressure, or both. Across geological timescales, one type of rock can transform into another as the Earth'