Leonite

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Author: Amelie Stahlbuhk
back to Sulfate

Leonite
Mineralogical name Leonite
Chemical name
Trivial name
Chemical formula K2Mg(SO4)2•4H2O
Other forms
Crystal system monoclinic
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³) 2.20 g/cm3
Molar volume 166.7 cm3/mol
Molar weight 366.69 g/mol
Transparency
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices nx=1.479
ny=1.483
nz=1.487
Birefringence Δ=0.008
Optical Orientation positive
Pleochroism
Dispersion appr. 90°
Used Literature
[JCPDS:1991]Title: JCPDS Powder Diffraction File 2 (PDF-2)
Link to Google Scholar
[Dana:1951]Title: Dana's System of Mineralogy
Author: Dana J.D.
Link to Google Scholar


Weblinks[edit]


Literature[edit]

[Dana:1951]Dana E.S. (eds.) Dana J.D. (1951): Dana's System of Mineralogy, 7, Wiley & SonsLink to Google Scholar
[JCPDS:1991] (1991): JCPDS Powder Diffraction File 2 (PDF-2).Link to Google Scholar