👉 Monotellurite is a rare, naturally occurring chemical compound that has been discovered in the rocks of the Mars Hill Formation. The name "monotellurite" comes from its resemblance to an octagonal shape, which can be seen on the surface of the rock. Monotellurites are known for their unique properties and have been studied by scientists since their discovery. Monotellurite is a type of calcium carbonate mineral that occurs in various forms, including monocots (