Kieserite: Difference between revisions
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Revision as of 15:34, 20 December 2011
| Kieserite[1][2] | |
| HJS MgSO4 092503-3.jpg | |
| Mineralogical name | Kieserite |
| Chemical name | Magnesiumsulfate Monohydrate |
| Trivial name | |
| Chemical formula | Mg[SO4] • H2O |
| Other forms | Sanderite (MgSO4•2H2O) Starkeyite (MgSO4•4H2O) Pentahydrite (MgSO4•5H2O) Hexahydrite (MgSO4•6H2O) Epsomite (MgSO4•7H2O) Meridianite (MgSO4•11 H2O) Magnesium 12-Hydrate |
| Crystal system | monoclinic |
| Crystal structure | monoclinic prismatic |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | 684 g/l (100°C) |
| Density (g/cm³) | 2.57 g/cm3 |
| Molar volume | 53.85 cm3/mol |
| Molar weight | 138.9 g/mol |
| Transparency | translucent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | can be produced from an aqueous solution over 67°C |
| Crystal Optics | |
| Refractive Indices | nx = 1.523-1.520 ny = 1.535-1.533 nz = 1.586-1.584 |
| Birefringence | Δ = 0.063-0.064 |
| Optical Orientation | biaxial positive |
| Pleochroism | |
| Dispersion | 55° |
| Used Literature | |
| {{{Literature}}} | |
back to Sulfate
Weblinks[edit]
- ↑ http://webmineral.com/data/Kieserite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-2204.html viewed on 29/07/2010