Hexahydrite: Difference between revisions
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|Footnote =<ref>http://webmineral.com/data/Hexahydrite.shtml</ref><ref>http://www.mindat.org/min-1891.html</ref> | |Footnote =<ref>http://webmineral.com/data/Hexahydrite.shtml</ref><ref>http://www.mindat.org/min-1891.html</ref> | ||
|photo =<!-- [[Image:"file name"|300px]]--> | |photo =<!-- [[Image:"file name"|300px]]--> | ||
|mineralogical_Name =Hexahydrite, | |mineralogical_Name =Hexahydrite, Magnesiumsulfate | ||
|chemical_Name = | |chemical_Name =Magnesiumsulfate Hexahydrite | ||
|Trivial_Name = | |Trivial_Name = | ||
|chemical_Formula =MgSO<sub>4</sub>•6H<sub>2</sub>O | |chemical_Formula =MgSO<sub>4</sub>•6H<sub>2</sub>O | ||
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|Deliqueszenzhumidity = | |Deliqueszenzhumidity = | ||
|Solubility = 660 g/l | |Solubility = 660 g/l | ||
|Density = 1 | |Density = 1.76 g/cm<sup>3</sup> | ||
|MolVolume = 132 | |MolVolume = 132.6 cm<sup>3</sup>/mol | ||
|Molweight = 228 | |Molweight = 228.46 g/mol | ||
|Transparency = transparent to opaque | |Transparency = transparent to opaque | ||
|Cleavage = perfect | |Cleavage = perfect | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices = α = 1 | |Refractive_Indices = α = 1.426<br>β = 1.453<br>γ = 1.456 | ||
|Birefringence = Δ = 0 | |Birefringence = Δ = 0.030 | ||
|optical_Orientation = biaxial negative | |optical_Orientation = biaxial negative | ||
|Pleochroism = | |Pleochroism = | ||
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}} | }} | ||
back to [[ | back to [[Sulfate]] | ||
==Weblinks== | ==Weblinks== | ||
<references/> | <references/> | ||
[[Category:Hexahydrite]][[Category:Sulphate]][[Category:Salt]][[Category:InProgress]] | [[Category:Hexahydrite]][[Category:Sulphate]][[Category:Salt]][[Category:InProgress]][[Category:Sulfate]] | ||
Revision as of 15:31, 20 December 2011
| Hexahydrite[1][2] | |
| Mineralogical name | Hexahydrite, Magnesiumsulfate |
| Chemical name | Magnesiumsulfate Hexahydrite |
| Trivial name | |
| Chemical formula | MgSO4•6H2O |
| Other forms | Kieserite (MgSO4•H2O) Sanderite (MgSO4•2H2O) Starkeyite (MgSO4•4H2O) Pentahydrite (MgSO4•5H2O) Epsomite (MgSO4•7H2O) Meridianite (MgSO4•11H2O) Magnesium 12-Hydrate |
| Crystal system | monoclinic |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | 660 g/l |
| Density (g/cm³) | 1.76 g/cm3 |
| Molar volume | 132.6 cm3/mol |
| Molar weight | 228.46 g/mol |
| Transparency | transparent to opaque |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | can be produced from an aqueous solution at 48-69 °C |
| Crystal Optics | |
| Refractive Indices | α = 1.426 β = 1.453 γ = 1.456 |
| Birefringence | Δ = 0.030 |
| Optical Orientation | biaxial negative |
| Pleochroism | |
| Dispersion | 38° |
| Used Literature | |
| {{{Literature}}} | |
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