👉 Aurotellurite is a type of mineral that consists of tiny, often spherical or elongated crystals, similar to those found in minerals like quartz and feldspar. These crystals are typically composed of a metallic silver-like substance known as an aurotell, which can be made from various metals such as copper, tin, or gold. Aurotellurite is named after the German chemist Friedrich Aurotell, who first described it in 1857. The name