Popular types of natural stone are granite, marble, andesite, slate, marlite, sandstone, quartzite, gneiss, travertine, porphyry, onyx, and conglomerates.
Based on how they are formed, we can identify three types of rock: magmatic (igneous), sedimentary, and metamorphic (altered). Magmatic rock is formed through the process of crystallization of magma. The structure of magmatic rock is defined by the succession of crystallization and gradual cooling of magma. The main magmatic rock types are granite, granite porphyry, quartz porphyry, basalt, etc.
Sedimentary rocks were formed firstly by the transfer, deposition and cementation of eroded particles, secondly by a chemical process (precipitation from solutions), or thirdly by a biological process, in which the sedimentation is caused by a biological factor. Sedimentary rocks are mostly formed on the Earth’s surface or just below the surface at relatively low temperatures. The main types are sandstone, limestone, clay stone, travertine, etc.
Metamorphic rocks arise from the transformation of existing rock types in a process that requires a high temperature, great pressure, and a specific environment (Earth’s crust factors). The duration and intensity of these factors determine the final appearance. Metamorphic rocks are e. g. crystalline limestone (marble), phyllite, granulite, etc.
Embrace the superlatives
When it comes to natural stone, there is no need to shy away from superlatives. Natural stone is practical, durable, timeless, dominant, and always original. Look for a supplier who works with experienced architects and monumental masons, employs experienced stonemasons, offers a wide variety of materials (because they directly import stone from all over the world), and can also renovate and rebuild original stone constructions.