Input interpretation
rokühnite (mineral)
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General properties
alternate names | rokuehnite formula | Fe^(2+)Cl_2·(H_2O)
Basic properties
density | 2.35 g/cm^3 transparency | transparent birefringence | 0.097 magnetism | nonmagnetic color | colorless molar mass | 144.8 g/mol (grams per mole)
Units
Mineral identifiers
Strunz ID | III/A.12-50 Dana ID | 9.2.4.1 IMA number | IMA1979-036
Crystallographic properties
crystal system | monoclinic crystal class | 2/m unit cell volume | 225.5 Å^3 (cubic ångströms) d-spacing | 5.53 Å (ångströms) | 2.762 Å (ångströms) | 4.228 Å (ångströms) intensity | 100% | 70% | 60% molecules per unit cell | 2 molecules per cell 2V angle | 11 π/30 radians≈66° (degrees) refractive indices | 1.605 | 0 | 0 | 0 | 0 | 0 dispersion | strong unit cell lengths | 7.396 Å (ångströms) | 8.458 Å (ångströms) | 3.638 Å (ångströms) unit cell angles | 90° (degrees) | 97.68° (degrees) | 90° (degrees)