👉 Fiedlerite is a type of mineral found in the Earth's crust. It is composed mostly of silicate minerals, such as calcite and quartz, which are part of the same group called biotites or biotites. Fiedlerite typically has a pinkish-white color, but it can also have blue or purple hues depending on how well hydrated it is. It is often used in various applications due to its electrical conductivity and thermal conductivity properties.