The variety known as rainbow hematite exhibits colors similar to oil patches on water.
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Hematite itself is not radioactive. It is a common iron oxide mineral that does not exhibit radioactive properties.
The word equation for the reaction when iron forms hematite in the Earth is: Iron + Oxygen → Hematite.
Gold, hematite, calcite, and quartz are all mineral elements.
Hematite can be found in sedimentary rocks as well as other types of rocks. However, the mineral itself is not considered sedimentary, as it forms primarily through hydrothermal or metamorphic processes.
When magnetite (Fe3O4) and hematite (Fe2O3) are heated together, they form a solid solution known as magnesioferrite (MgFe2O4). This new compound has different magnetic and electrical properties compared to the original minerals.