This mineral comprises of phyllosilicate mineral, which is commonly found in the Mica Group of materials. In most cases Biotite is determined to be called Dark Mica that's has its own Solid Solution Series between Magnesium, Aluminous, Iron, Phlogopite, Siderophyllite, and Annite. More so this mineral was rather believed to have been named after J.F.L. Hausmann in 1847. Nevertheless, it became named in honor of French Physicist Jean Baptiste Bio, who made several discoveries of Mica, and would have also research the optical properties of Mica. This mineral it self is more of a sheet silicate that contains Silicon, Oxygen, Iron, Aluminium, Hydrogen, and Magnesium contents, which are bounded together with Potassium Ion. Many geologist refer this mineral to be also considered as Iron Mica because the iron content is determined to be more richer than Phlogopite. The properties of this mineral are identified to be its crystal formation. Biotite is known to also occur in the formation of Igneous, and Metamorphic Rocks. This mineral can also be found in Bancroft, Ontario, Canada.