Thenardite: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 14: | Line 14: | ||
|MolVolume = 53,11 cm<sup>3</sup>/mol | |MolVolume = 53,11 cm<sup>3</sup>/mol | ||
|Molweight = 142,04 g/mol | |Molweight = 142,04 g/mol | ||
|Transparency = | |Transparency = transparent to translucent | ||
|Cleavage = | |Cleavage = perfect | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
Revision as of 12:27, 9 June 2011
| Thenardite[1][2] | |
| |
| Mineralogical name | Thenardite |
| Chemical name | Natrium sulphate |
| Trivial name | Pyrotechnite |
| Chemical formula | Na2SO4 |
| Other forms | Mirabilite (Na2SO4•10H2O) Natrium sulphate heptahydrate (Na2SO4•7H2O) |
| Crystal system | {{{Crystal_System}}} |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | |
| Density (g/cm³) | 2,689 g/cm³ |
| Molar volume | 53,11 cm3/mol |
| Molar weight | 142,04 g/mol |
| Transparency | transparent to translucent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | soluble in water and glycerin, not soluble in pure alcohol |
| Crystal Optics | |
| Refractive Indices | nx = 1,468 ny = 1,473 nz = 1,483 |
| Birefringence | Δ = 0,015 |
| Optical Orientation | positive |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Sulphate
Weblinks[edit]
- ↑ http://webmineral.com/data/Thenardite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-3935.html viewed on 29/07/2010