Input interpretation
fibroferrite (mineral)
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General properties
formula | Fe^(3+)(SO_4)(OH)·5(H_2O) discovery year | 1833
Basic properties
density | 1.9 g/cm^3 birefringence | 0.038 luster | silky | pearly Mohs hardness | 2.25 streak | white magnetism | nonmagnetic color | green gray | yellow green | white | light green | light yellow fracture | uneven molar mass | 259 g/mol (grams per mole)
Units
Mineral identifiers
Strunz ID | VI/D.01-60 Dana ID | 31.9.12.1 ICSD number | ICSD100721
Crystallographic properties
crystal system | trigonal crystal class | 3 unit cell volume | 3844 Å^3 (cubic ångströms) d-spacing | 12.1 Å (ångströms) | 2.98 Å (ångströms) | 6.96 Å (ångströms) intensity | 100% | 80% | 60% molecules per unit cell | 18 molecules per cell refractive indices | 0 | 0 | 0 | 1.532 | 0 | 0 unit cell lengths | 24.12 Å (ångströms) | 7.63 Å (ångströms) | 7.63 Å (ångströms) unit cell angles | 90° (degrees) | 90° (degrees) | 120° (degrees)