👉 Beraunite is a mineral that is often associated with the name "bera". It is a greenish-brown to dark brown color and has a hardness of 2-3 on the Mohs scale. Beraunite is not typically found in nature, but it is used as an ingredient in jewelry making. Beraunite was first described by German mineralogist Friedrich Wilhelm von Beraun in 1846. It is also known as beryll