Gorgeyite

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Gorgeyite[1][2]
Mineralogical name Gorgeyite, Görgeyite, Mikheevite
Chemical name
Trivial name
Chemical formula K2Ca5(SO4)6•H2O
Other forms
Crystal system monoclinic
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³)
Molar volume 304 cm3/mol
Molar weight
Transparency
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices nx= 1,560
ny = 1,569
nz = 1,584
Birefringence Δ = 0,024
Optical Orientation positive
Pleochroism
Dispersion
Used Literature
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