👉 A flowstone is a type of metamorphic rock that is formed when lava flows over and erodes through a sedimentary rock. It is typically found in areas where there has been a high volume of lava flowing into the ground, such as on the surface of an erupting volcano or in an underground chamber that has erupted. The flowstone has a rough, irregular appearance due to the way it was formed and can be made up of different types of minerals, including quartz, feldspar,

flowstone