👉 Rammelsbergite is a mineral that belongs to the group of minerals called biotites. It is primarily found in rocks and sedimentary environments, including limestone and dolomite. Rammelsbergite has a distinctive red color due to its chemical composition, which includes iron oxide and mica. The rammelsbergite can be distinguished from other biotites by its larger size (typically about 1-3 mm), higher hardness, and lower melting point compared to other bi
