Magnetite Mineral information data and localities
Jacobsite Magnetite Series Magnesioferrite Magnetite Series Magnetite is an important strongly magnetic iron ore along with hematite Nanoinclusions of magnetite crystals cause the iridescence of Rainbow obsidian Nadin 2021 Extremely thin layers of 200 nm octahedral crystals of magnetite give some basalt surfaces an iridescent sheen Nadin 2021