Weddellite: Difference between revisions
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|Deliqueszenzhumidity = | |Deliqueszenzhumidity = | ||
|Solubility = | |Solubility = | ||
|Density =2 | |Density =2.02 g/cm³ | ||
|MolVolume = | |MolVolume = | ||
|Molweight =164 | |Molweight =164.13 g/mol | ||
|Transparency = | |Transparency = | ||
|Cleavage = | |Cleavage = | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices =n<sub>o</sub> = 1 | |Refractive_Indices =n<sub>o</sub> = 1.523<br> n<sub>e</sub> = 1.544 | ||
|Birefringence =Δ = 0 | |Birefringence =Δ = 0.021 | ||
|optical_Orientation =positive | |optical_Orientation =positive | ||
|Pleochroism = | |Pleochroism = | ||
Revision as of 15:57, 20 December 2011
| Weddellite[1][2] | |
| |
| Mineralogical name | Weddellite |
| Chemical name | Calcium oxalate dihydrate |
| Trivial name | |
| Chemical formula | Ca(C2O4)•2H2O |
| Other forms | |
| Crystal system | tetragonal |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | |
| Density (g/cm³) | 2.02 g/cm³ |
| Molar volume | |
| Molar weight | 164.13 g/mol |
| Transparency | |
| Cleavage | |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | not soluble in water |
| Crystal Optics | |
| Refractive Indices | no = 1.523 ne = 1.544 |
| Birefringence | Δ = 0.021 |
| Optical Orientation | positive |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Organic Salts
Weblinks[edit]
- ↑ http://www.mindat.org/min-4254.html viewed on 09/06/2011
- ↑ http://webmineral.com/data/Weddellite.shtml viewed on 09/06/2011