Bassanite: Difference between revisions
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{{Infobox_Salt | {{Infobox_Salt | ||
|Footnote = | |Footnote =<ref>http://webmineral.com/data/Bassanite.shtml seen on 29.07.2010</ref><ref>http://www.mindat.org/min-557.html seen on 29.07.2010</ref> | ||
|photo = | |photo = <!-- [[Image:"file name"|300px]]--> | ||
|mineralogical_Name = | |mineralogical_Name = Bassanite | ||
|chemical_Name = | |chemical_Name = Calciumsulphate hemihydrate | ||
|Trivial_Name = | |Trivial_Name = | ||
|chemical_Formula | |chemical_Formula =CaSO<sub>4</sub>•0,5H<sub>2</sub>O | ||
|Hydratforms = | |Hydratforms = | ||
|Crystal_Class = | |Crystal_Class =monoclinic | ||
|Crystal_Structure = | |Crystal_Structure = | ||
|Deliqueszenzhumidity = | |Deliqueszenzhumidity = | ||
|Solubility = | |Solubility = | ||
|Density = | |Density =2,7 g/cm<sup>3</sup> | ||
|MolVolume = | |MolVolume =55,04 cm<sup>3</sup>/mol | ||
|Molweight = | |Molweight =145,15 g/mol | ||
|Transparency = | |Transparency = | ||
|Cleavage = | |Cleavage = | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices = | |Refractive_Indices = n<sub>o</sub> = 1,558<br>n<sub>e</sub> = 1,586 | ||
|Birefringence = | |Birefringence =Δ = 0,028 | ||
|optical_Orientation = | |optical_Orientation =positive | ||
|Pleochroism = | |Pleochroism = | ||
|Dispersion = | |Dispersion = | ||
|Phase_Transition = | |Phase_Transition = | ||
|chemBehavior = | |chemBehavior =hardly soluble in water | ||
|Comments = | |Comments = | ||
}} | }} | ||
Revision as of 14:54, 3 June 2011
| Bassanite[1][2] | |
| Mineralogical name | Bassanite |
| Chemical name | Calciumsulphate hemihydrate |
| Trivial name | |
| Chemical formula | CaSO4•0,5H2O |
| Other forms | |
| Crystal system | {{{Crystal_System}}} |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | |
| Density (g/cm³) | 2,7 g/cm3 |
| Molar volume | 55,04 cm3/mol |
| Molar weight | 145,15 g/mol |
| Transparency | |
| Cleavage | |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | hardly soluble in water |
| Comments | |
| Crystal Optics | |
| Refractive Indices | no = 1,558 ne = 1,586 |
| Birefringence | Δ = 0,028 |
| Optical Orientation | positive |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Sulphate
Weblinks[edit]
- ↑ http://webmineral.com/data/Bassanite.shtml seen on 29.07.2010
- ↑ http://www.mindat.org/min-557.html seen on 29.07.2010