Understanding the Difference Between Igneous, Sedimentary and Metamorphic Stone Natural stone has been one of the most important building materials throughout human history. Whether used in residential construction, commercial architecture, landscaping, monuments, or interior design, stones are generally classified into three primary geological categories: igneous stones, sedimentary stones, and metamorphic stones. Understanding the differences between these stone types is essential for architects, builders, contractors, developers, and property owners who want to select the most suitable material for their projects. What Are Igneous Stones? Igneous stones are formed through the cooling and solidification of molten magma or lava. The term “igneous” originates from the Latin word ignis, meaning fire. Key Characteristics…