Antarcticite: Difference between revisions
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|Refractive_Indices =n<sub>o</sub> =1.417-1.494<br>n<sub>e</sub> = 1.393-1.550 | |Refractive_Indices =n<sub>o</sub> =1.417-1.494<br>n<sub>e</sub> = 1.393-1.550 | ||
|Birefringence =Δ= 0.024 | |Birefringence =Δ= 0.024 | ||
|optical_Orientation = | |optical_Orientation =negative | ||
|Pleochroism = | |Pleochroism = | ||
|Dispersion = | |Dispersion = | ||
Revision as of 21:05, 23 April 2012
| Antarcticite[1][2] | |
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| |
| Mineralogical name | Antarcticite |
| Chemical name | Calciumchloride hexahydrate |
| Trivial name | |
| Chemical formula | CaCl2•6H2O |
| Other forms | |
| Crystal system | trigonal |
| Crystal structure | |
| Deliquescence humidity 20°C | 33.7% (10°C), 30.8% (20°C), 22.4% (30°C) |
| Solubility (g/l) at 20°C | 5360 g/l |
| Density (g/cm³) | 1.68 g/cm³ |
| Molar volume | 128.0 cm3/mol |
| Molar weight | 219.08 g/mol |
| Transparency | transparent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | hygroscopic and deliquescent |
| Crystal Optics | |
| Refractive Indices | no =1.417-1.494 ne = 1.393-1.550 |
| Birefringence | Δ= 0.024 |
| Optical Orientation | negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Chloride
Weblinks[edit]
- ↑ http://webmineral.com/data/Antarcticite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-251.html viewed on 29/07/2010