👉 Riebeckite is a type of mineral that is primarily found in the Earth's crust. It is named after its distinctive structure, which consists of three layers, or "riekels," each with a different color reflecting light and heat. The most common form of riebeckite is known as chalcopyrite, which is also sometimes referred to as "greenstone" due to its green coloration. Other more rare forms include phyllite, anellite, and hemat
