👉 Buhrstone is a term used in the field of geology to describe a type of igneous rock that forms from the cooling and solidification of magma or lava. These rocks are often composed of quartz, feldspar, and mica, and they can be found in many locations around the world. The term "Buhrstone" is derived from the German word "Buhr", which means "boulder". The rocks that form Buhrstones are typically formed when magma or lava
