Arcanite: Difference between revisions
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[[Category:Arcanite]][[Category:Salt]][[Category:editing]][[Category:Sulfate]] [[Category:Sulphate]] | [[Category:Arcanite]][[Category:Salt]][[Category:editing]][[Category:Sulfate]] [[Category:Sulphate]][[Category:List]] |
Latest revision as of 16:49, 14 February 2015
Arcanite[1][2] | |
Mineralogical name | Arcanite |
Chemical name | Potassium sulfate |
Trivial name | Sulfate of Potash |
Chemical formula | K2SO4 |
Other forms | |
Crystal system | orthorhombic |
Crystal structure | |
Deliquescence humidity 20°C | 98.2% (10°C), 97.6% (20°C), 97% (30°C) |
Solubility (g/l) at 20°C | 111.5 g/l |
Density (g/cm³) | 2.660 g/cm3 |
Molar volume | 65.5 cm3/mol |
Molar weight | 174.26 g/mol |
Transparency | |
Cleavage | destinct to good |
Crystal habit | |
Twinning | |
Phase transition | |
Chemical behavior | |
Comments | |
Crystal Optics | |
Refractive Indices | nx = 1.494 ny = 1.495 nz = 1.497 |
Birefringence | Δ = 0.003 |
Optical Orientation | positive |
Pleochroism | |
Dispersion | |
Used Literature | |
[Robie.etal:1978]Title: Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures Author: Robie R.A., Hemingway B.S.; Fisher J.A. |
back to Sulfate
Weblinks[edit]
- ↑ http://webmineral.com/data/Arcanite.shtml viewed on 20/07/2010
- ↑ http://www.mindat.org/min-314.html viewed on 20/07/2010
Literature[edit]
[Robie.etal:1978] | Robie R.A., Hemingway B.S.; Fisher J.A. (1978): Thermodynamic properties of minerals and related substances at 298.15 K and 1 bar pressure and higher temperatures. In: U.S. Geol. Surv. Bull, 1452 () |