Astrakanite: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
{{Infobox_Salt | {{Infobox_Salt | ||
|Footnote = <ref>http://www.mindat.org/min-695.html viewed on 29/07/2010</ref> | |Footnote = <ref>http://www.mindat.org/min-695.html viewed on 29/07/2010</ref> | ||
|photo = CH GR Berguen EvKirche 0098 01 6 Bb 440um IMG 3337.JPG|300px | |photo = [[File:CH GR Berguen EvKirche 0098 01 6 Bb 440um IMG 3337.JPG|300px]] | ||
|mineralogical_Name = Astrakanite, Bloedite | |mineralogical_Name = Astrakanite, Bloedite | ||
|chemical_Name = Sodium magnesium sulphate | |chemical_Name = Sodium magnesium sulphate | ||
Revision as of 11:23, 8 June 2011
| Astrakanite[1] | |
| |
| Mineralogical name | Astrakanite, Bloedite |
| Chemical name | Sodium magnesium sulphate |
| Trivial name | |
| Chemical formula | Na2Mg(SO4)2•4H2O |
| Other forms | |
| Crystal system | {{{Crystal_System}}} |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | |
| Density (g/cm³) | 2,23 g/cm3 |
| Molar volume | 150,0 cm3/mol |
| Molar weight | 334,48 g/mol |
| Transparency | |
| Cleavage | |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | |
| Crystal Optics | |
| Refractive Indices | nx = 1,483-1,486 ny = 1,486-1,488 nz = 1,487-1,489 |
| Birefringence | Δ = 0,004-0,003 |
| Optical Orientation | biaxial negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Sulphate
Weblinks[edit]
- ↑ http://www.mindat.org/min-695.html viewed on 29/07/2010