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Table 2 Rock magnetic properties of magnetic minerals

From: Reductive chemical demagnetization: a new approach to magnetic cleaning and a case study of reef limestones

Magnetic mineral Composition Range of coercivity Ordering temperature (°C)
Magnetite Fe3O4 10–100 mT 580
Hematite α-Fe2O3 100s of mT to several T 675
Goethite α-FeOOH 5–10 T 120
  1. References: Dunlop and Özdemir (1997) and Kodama and Hinnov (2015)