Input interpretation
trögerite (mineral) | skippenite (mineral)
Images
Images
General properties
| trögerite | skippenite alternate names | troegerite | (none) formula | H_2(UO_2)_2(AsO_4)_2·8(H_2O) | Bi_2Se_2(Te, S) discovery year | 1871 | 1987
Basic properties
| trögerite | skippenite density | 3.55 g/cm^3 | 7.67 g/cm^3 transparency | transparent | opaque birefringence | 0.045 | luster | vitreous | waxy | pearly | metallic Mohs hardness | 5/2 | 2.5 tenacity | brittle | streak | | black magnetism | nonmagnetic | nonmagnetic color | yellow | steel gray fracture | micaceous | molar mass | 964 g/mol | 679.6 g/mol
Units
Mineral identifiers
| trögerite | skippenite Strunz ID | VII/E.01-10 | II/D.09-50 Dana ID | 40.2a.20.1 | 2.11.7.6 IMA number | | IMA1986-033 ICSD number | | ICSD42544
Crystallographic properties
| trögerite | skippenite crystal system | tetragonal | trigonal crystal class | 4/m2/m2/m | -32/m unit cell volume | 451.1 Å^3 (cubic ångströms) | 441.3 Å^3 (cubic ångströms) d-spacing | 8.59 Å (ångströms) | 3.79 Å (ångströms) | 3.3 Å (ångströms) | 3.074 Å (ångströms) | 2.09 Å (ångströms) | 2.267 Å (ångströms) intensity | 100% | 90% | 80% | 100% | 80% | 70% molecules per unit cell | 1 molecule per cell | 3 molecules per cell refractive indices | 0 | 0 | 0 | 0 | 1.585 | 0 | unit cell lengths | 7.16 Å (ångströms) | 7.16 Å (ångströms) | 8.8 Å (ångströms) | 4.183 Å (ångströms) | 29.12 Å (ångströms) | 29.12 Å (ångströms) unit cell angles | 90° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees) | 120° (degrees)