Aphthitalite: Difference between revisions

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{{Infobox_Salt
{{Infobox_Salt
|Footnote            = <ref>http://webmineral.com/data/Aphthitalite.shtml  viewed on 29/07/2010</ref><ref>http://www.mindat.org/min-280.html  viewed on 29/07/2010</ref> <ref><bib id="JCPDS:1991"></ref>
|Footnote            = <ref>http://webmineral.com/data/Aphthitalite.shtml  viewed on 29/07/2010</ref><ref>http://www.mindat.org/min-280.html  viewed on 29/07/2010</ref>
|photo                =  [[File:Aphthitalit-19082010-klein.jpg|300px]]
|photo                =  [[File:Aphthitalit-19082010-klein.jpg|300px]]
|mineralogical_Name  = Aphthitalite
|mineralogical_Name  = Aphthitalite
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|chemBehavior        =
|chemBehavior        =
|Comments            =
|Comments            =
|Literature =  <bib id="JCPDS:1991"/>
}}
}}



Revision as of 20:45, 13 February 2015

Aphthitalite[1][2]
Aphthitalit-19082010-klein.jpg
Mineralogical name Aphthitalite
Chemical name Potassium sodium sulphate
Trivial name Glaserite, Vesuvian Salt
Chemical formula K3Na(SO4)2
Na2SO4•3K2SO4
Other forms
Crystal system trigonal
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³) 1.35 g/cm3
Molar volume 246.2 cm3/mol
Molar weight 332.41 g/mol
Transparency transparent to opaque
Cleavage imperfect to fair
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices no = 1.491
ne = 1.499
Birefringence Δ = 0.008
Optical Orientation positive
Pleochroism
Dispersion
Used Literature
[JCPDS:1991]Title: JCPDS Powder Diffraction File 2 (PDF-2)
Link to Google Scholar


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References[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
[Dana:1951]Dana E.S. (eds.) Dana J.D. (1951): Dana's System of Mineralogy, 7, Wiley & SonsLink to Google Scholar