Input interpretation
rokühnite (mineral) | kleinite (mineral)
Images
Images
General properties
| rokühnite | kleinite alternate names | rokuehnite | (none) formula | Fe^(2+)Cl_2·(H_2O) | Hg_2N(Cl, SO_4)·n(H_2O) discovery year | | 1905
Basic properties
| rokühnite | kleinite density | 2.35 g/cm^3 | 8 g/cm^3 transparency | transparent | translucent | subtranslucent birefringence | 0.097 | 0.02 luster | | adamantine | greasy Mohs hardness | | 3.75 tenacity | | brittle streak | | yellow magnetism | nonmagnetic | nonmagnetic color | colorless | yellow | orange fracture | | brittle molar mass | 144.8 g/mol | 474.7 g/mol
Units
Mineral identifiers
| rokühnite | kleinite Strunz ID | III/A.12-50 | III/D.06-70 Dana ID | 9.2.4.1 | 10.4.3.1 IMA number | IMA1979-036 | ICSD number | | ICSD83018
Crystallographic properties
| rokühnite | kleinite crystal system | monoclinic | hexagonal crystal class | 2/m | 6/m2/m2/m unit cell volume | 225.5 Å^3 (cubic ångströms) | 1772 Å^3 (cubic ångströms) d-spacing | 5.53 Å (ångströms) | 2.762 Å (ångströms) | 4.228 Å (ångströms) | 2.62 Å (ångströms) | 2.91 Å (ångströms) | 3.88 Å (ångströms) intensity | 100% | 70% | 60% | 100% | 100% | 60% molecules per unit cell | 2 molecules per cell | 18 molecules per cell 2V angle | 11 π/30 radians≈66° (degrees) | refractive indices | 1.605 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.19 | 0 | 0 dispersion | strong | unit cell lengths | 7.396 Å (ångströms) | 8.458 Å (ångströms) | 3.638 Å (ångströms) | 13.56 Å (ångströms) | 13.56 Å (ångströms) | 11.13 Å (ångströms) unit cell angles | 90° (degrees) | 97.68° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees) | 120° (degrees)