Complex coordination type oxide minerals. There are often isomorphic mixtures such as Mn, Nh, Ta, etc. Tripartite crystal system. corundum structure. crystal are rare, often in granular, tabular, scaly or flaky form in magnetite. Iron black or steel grey. Striped steel is gray or black. When hematite inclusion is contained, the stripe is brown or brownish red. Metallic to semi metallic luster. Opaque. Mohs hardness is 5-6.5, brittle, and density is 4-5g/cm3. Has weak magnetism. It mainly occurs in super basic rock, basic rock, alkaline rock and metamorphic rock. It is associated with titanium magnetite, olivine, plagioclase, titanium ordinary pyroxene, pyrrhothe, etc. It is a raw mineral material for refining titanium.
Natural materials and products -> Mineral materials