Schönite

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Schönite[1][2]
Mineralogical name Schönite, Pikromerite
Chemical name
Trivial name
Chemical formula K2Mg(SO4)2•6H2O
Other forms
Crystal system monoclinic
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³) 2,03 g/cm3
Molar volume 198,4 cm3/mol
Molar weight
Transparency transparent
Cleavage perfect
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices nx = 1,461
ny = 1,463
nz = 1,476
Birefringence Δ = 0,015
Optical Orientation positive
Pleochroism
Dispersion
Used Literature
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