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Input interpretation:

hematite  (mineral)  |  magnetite  (mineral)  |  chromite  (mineral)


General properties:

 | hematite | magnetite | chromite\nformula | Fe_2O_3 | Fe^(2+)Fe^(3+)_2O_4 | Fe^(2+)Cr_2O_4


Basic properties:

 | hematite | magnetite | chromite\ndensity | 5.3 g\/cm^3 | 5.15 g\/cm^3 | 4.795 g\/cm^3\ntransparency | subtranslucent  |  opaque | opaque | opaque\nbirefringence | 0.28 | 0 | 0\nluster | metallic  |  submetallic  |  dull  |  earthy | metallic  |  submetallic | metallic\nMohs hardness | 11\/2 | 5.75 | 5.5\ntenacity | brittle | brittle | brittle\nstreak | reddish brown | black | brown\nmagnetism | magnetic after heating | strongly magnetic | weakly magnetic\ncolor | reddish gray  |  black  |  blackish red | grayish black  |  iron black | black  |  brownish black\nfracture | conchoidal | subconchoidal | uneven\nmolar mass | 159.7 g\/mol | 231.5 g\/mol | 223.8 g\/mol

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