Input interpretation
gerhardtite (mineral)
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General properties
formula | Cu_2(NO_3)(OH)_3 discovery year | 1885
Basic properties
density | 3.415 g/cm^3 transparency | transparent birefringence | 0.019 luster | vitreous Mohs hardness | 2 streak | light green magnetism | nonmagnetic color | green | dark green molar mass | 240.1 g/mol (grams per mole)
Units
Mineral identifiers
Strunz ID | V/A.03-10 Dana ID | 19.1.1.1
Crystallographic properties
crystal system | orthorhombic crystal class | 222 unit cell volume | 469.2 Å^3 (cubic ångströms) d-spacing | 6.91 Å (ångströms) | 2.31 Å (ångströms) | 2.624 Å (ångströms) intensity | 100% | 80% | 80% molecules per unit cell | 4 molecules per cell 2V angle | 19 π/40 radians≈171/2° (degrees) refractive indices | 1.703 | 0 | 0 | 0 | 0 | 0 dispersion | r < v | strong unit cell lengths | 5.592 Å (ångströms) | 6.075 Å (ångströms) | 13.81 Å (ångströms) unit cell angles | 90° (degrees) | 90° (degrees) | 90° (degrees)