What kind of rock is homfels?

Answer 1

Hornfels is a type of metamorphic rock that forms from the contact metamorphism of sedimentary or igneous rocks when they are subjected to high temperatures and pressures, typically near intrusive igneous bodies. It is characterized by its fine-grained texture, often displaying a dense and hard structure. Hornfels does not have a specific mineral composition, as it can contain a variety of minerals depending on the parent rock. Commonly, it features minerals like quartz, feldspar, and various micas.