Arcanite
Jump to navigation
Jump to search
| 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 () | |