It occurs in association with pyrolusite, nsutite, braunite, chalcophanite, manganite and various other manganese oxides. Lanthanum strontium manganite exhibits colossal magnetoresistance. Other minerals from the sedimentary rocks include pyrite, calcite, barite, manganite, and pyrolusite. It is a member of the diaspore group and is trimorphous with manganite and feitknechtite. It also occurs in bogs and often results from alteration of manganite. These families include lanthanum strontium manganite, lanthanum calcium manganite and others. Manganite powder has been a common find in Neanderthal archaeological sites. In lanthanum manganite, both the La and the Mn are in the +3 oxidation state. Lanthanum manganite is an electrical insulator and an A-type antiferromagnet. Lanthanum manganite is an inorganic compound with the formula LaMnO, often abbreviated as LMO. These include colossal-magnetoresistance manganite materials, magnetocaloric materials, magnetic shape memory materials, and other materials. Manganite lowers the combustion temperature of wood from 350 degrees Celsius to 250 degrees Celsius. Manganite is believed to have been used in prehistoric times to start a wood fire.