Input interpretation
parnauite (mineral)
Image
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General properties
formula | Cu_9(AsO_4)_2(SO_4)(OH)_10·7(H_2O) discovery year | 1978
Basic properties
density | 3.09 g/cm^3 transparency | semitransparent birefringence | 0.032 Mohs hardness | 2 streak | greenish white magnetism | nonmagnetic color | blue green | green | light blue molar mass | 1242 g/mol (grams per mole)
Units
Mineral identifiers
Strunz ID | VII/D.20-30 Dana ID | 43.5.13.1 IMA number | IMA1978-014
Crystallographic properties
crystal system | orthorhombic crystal class | 222 unit cell volume | 1282 Å^3 (cubic ångströms) d-spacing | 14.3 Å (ångströms) | 4.52 Å (ångströms) | 10.38 Å (ångströms) intensity | 100% | 60% | 24% molecules per unit cell | 2 molecules per cell 2V angle | 59 π/180 radians≈59° (degrees) refractive indices | 1.68 | 0 | 0 | 0 | 0 | 0 dispersion | r > v | strong unit cell lengths | 14.98 Å (ångströms) | 14.22 Å (ångströms) | 6.018 Å (ångströms) unit cell angles | 90° (degrees) | 90° (degrees) | 90° (degrees)