Darapskite

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Darapskite[1][2]
Darapskit-19082010-klein.jpg
Mineralogical name Darapskite
Chemical name Natrium sulphate nitrate
Trivial name
Chemical formula Na3(SO4)(NO3)•H2O
NaNO3•Na2SO4•H2O
Other forms
Crystal system {{{Crystal_System}}}
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³)
Molar volume 111,4 cm3/mol
Molar weight 245 g/mol
Transparency
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices nx = 1,391
ny = 1,481
nz = 1,486
Birefringence Δ = 0,095
Optical Orientation negative
Pleochroism
Dispersion
Used Literature
{{{Literature}}}


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