Input interpretation
alumoklyuchevskite (mineral) | chessexite (mineral)
Image
Image
General properties
| alumoklyuchevskite | chessexite alternate names | aluminoklyuchevskite | (none) formula | K_3Cu_3AlO_2(SO_4)_4 | (K, Na)_4Ca_2Mg_3Al_8(SiO_4)_2(SO_4)_10(OH)_10·40(H_2O) discovery year | 1995 | 1982
Basic properties
| alumoklyuchevskite | chessexite density | 3.1 g/cm^3 | 2.21 g/cm^3 transparency | transparent | birefringence | 0.099 | 0.024 luster | vitreous | silky Mohs hardness | 2.25 | 2.21 streak | light green | white magnetism | nonmagnetic | nonmagnetic color | dark green | white molar mass | 751.2 g/mol | 2529 g/mol
Units
Mineral identifiers
| alumoklyuchevskite | chessexite Strunz ID | VI/B.05-45 | VIII/B.26-10 Dana ID | 28.4.6.2 | 32.4.6.1 IMA number | IMA1993-004 | IMA1981-054
Crystallographic properties
| alumoklyuchevskite | chessexite crystal system | monoclinic | orthorhombic crystal class | 2 | unit cell volume | 1737 Å^3 (cubic ångströms) | 3827 Å^3 (cubic ångströms) d-spacing | 9.04 Å (ångströms) | 9.15 Å (ångströms) | 3.781 Å (ångströms) | 13.91 Å (ångströms) | 4.85 Å (ångströms) | 3.982 Å (ångströms) intensity | 100% | 84% | 37% | 100% | 90% | 60% molecules per unit cell | 4 molecules per cell | 2 molecules per cell 2V angle | π/6 radians≈30° (degrees) | 97 π/360 radians≈97/2° (degrees) refractive indices | 1.542 | 0 | 0 | 0 | 0 | 0 | 1.456 | 0 | 0 | 0 | 0 | 0 dispersion | weak | strong unit cell lengths | 18.43 Å (ångströms) | 5.139 Å (ångströms) | 18.69 Å (ångströms) | 13.7 Å (ångströms) | 27.96 Å (ångströms) | 9.99 Å (ångströms) unit cell angles | 90° (degrees) | 101.1° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees) | 90° (degrees)