Epsomite: Difference between revisions
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|photo = [[File:HJS MgSO4 092503-2.jpg|300px]] | |photo = [[File:HJS MgSO4 092503-2.jpg|300px]] | ||
|mineralogical_Name = Epsomite | |mineralogical_Name = Epsomite | ||
|chemical_Name = | |chemical_Name = Magnesiumsulfate Heptahydrate | ||
|Trivial_Name =Bitter Salts, Reichardtite, Seelandite | |Trivial_Name =Bitter Salts, Reichardtite, Seelandite | ||
|chemical_Formula = MgSO<sub>4</sub>•7H<sub>2</sub>O | |chemical_Formula = MgSO<sub>4</sub>•7H<sub>2</sub>O | ||
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|Crystal_System = orthorhombic | |Crystal_System = orthorhombic | ||
|Crystal_Structure = | |Crystal_Structure = | ||
|Deliqueszenzhumidity = 90 | |Deliqueszenzhumidity = 90.1% (20°C), 94% (30°C) | ||
|Solubility = 710 g/l | |Solubility = 710 g/l | ||
|Density = 146 | |Density = 146.8 cm<sup>3</sup>/mol | ||
|MolVolume = 246 | |MolVolume = 246.48 g/mol | ||
|Molweight =1 | |Molweight =1.67 g/cm<sup>3</sup> | ||
|Transparency = transparent to translucent | |Transparency = transparent to translucent | ||
|Cleavage = perfect | |Cleavage = perfect | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices = n<sub>x</sub> = 1 | |Refractive_Indices = n<sub>x</sub> = 1.433<br>n<sub>y</sub> = 1.455<br>n<sub>z</sub> = 1.461 | ||
|Birefringence = Δ = 0 | |Birefringence = Δ = 0.028 | ||
|optical_Orientation = biaxial negative | |optical_Orientation = biaxial negative | ||
|Pleochroism = | |Pleochroism = | ||
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}} | }} | ||
back to [[ | back to [[Sulfate]] | ||
==Weblinks== | ==Weblinks== | ||
<references/> | <references/> | ||
[[Category:Epsomite]][[Category:Sulphate]][[Category:Salt]][[Category:InProgress]] | [[Category:Epsomite]][[Category:Sulphate]][[Category:Salt]][[Category:InProgress]][[Category:Sulfate]] | ||
Revision as of 15:22, 20 December 2011
| Epsomite[1][2] | |
| |
| Mineralogical name | Epsomite |
| Chemical name | Magnesiumsulfate Heptahydrate |
| Trivial name | Bitter Salts, Reichardtite, Seelandite |
| Chemical formula | MgSO4•7H2O |
| Other forms | Kieserite (MgSO4•H2O) Sanderite (MgSO4•2H2O) Starkeyite (MgSO4•4H2O) Pentahydrite(MgSO4•5H2O) Hexahydrite (MgSO4•6H2O) Meridianite (MgSO4•11H2O) Magnesium 12-Hydrate |
| Crystal system | orthorhombic |
| Crystal structure | |
| Deliquescence humidity 20°C | 90.1% (20°C), 94% (30°C) |
| Solubility (g/l) at 20°C | 710 g/l |
| Density (g/cm³) | 146.8 cm3/mol |
| Molar volume | 246.48 g/mol |
| Molar weight | 1.67 g/cm3 |
| Transparency | transparent to translucent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | can by produced from an aqueous solution under 50°C |
| Crystal Optics | |
| Refractive Indices | nx = 1.433 ny = 1.455 nz = 1.461 |
| Birefringence | Δ = 0.028 |
| Optical Orientation | biaxial negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Sulfate
Weblinks[edit]
- ↑ http://webmineral.com/data/Epsomite.shtml seen on 29.072010
- ↑ http://www.mindat.org/min-1393.html seen on 29.072010