Schönite: Difference between revisions
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|Crystal_Structure = | |Crystal_Structure = | ||
|Deliqueszenzhumidity = | |Deliqueszenzhumidity = | ||
|Solubility = | |Solubility = 250 g/l | ||
|Density = 2, | |Density = 2,15 g/cm<sup>3</sup> | ||
|MolVolume = 198,4 cm<sup>3</sup>/mol | |MolVolume = 198,4 cm<sup>3</sup>/mol | ||
|Molweight = | |Molweight = 402,73 g/mol | ||
|Transparency = transparent | |Transparency = transparent | ||
|Cleavage = perfect | |Cleavage = perfect | ||
Revision as of 09:48, 7 July 2011
| Schönite[1][2] | |
| Mineralogical name | Schönite, Pikromerite |
| Chemical name | |
| Trivial name | |
| Chemical formula | K2Mg(SO4)2•6H2O |
| Other forms | |
| Crystal system | monoclinic |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | 250 g/l |
| Density (g/cm³) | 2,15 g/cm3 |
| Molar volume | 198,4 cm3/mol |
| Molar weight | 402,73 g/mol |
| Transparency | transparent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | |
| Crystal Optics | |
| Refractive Indices | nx = 1,461 ny = 1,463 nz = 1,476 |
| Birefringence | Δ = 0,015 |
| Optical Orientation | positive |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Sulphate
Weblinks[edit]
- ↑ http://webmineral.com/data/Picromerite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-3206.html viewed on 29/07/2010