Lansfordite: Difference between revisions
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|Deliqueszenzhumidity = | |Deliqueszenzhumidity = | ||
|Solubility = | |Solubility = | ||
|Density =1 | |Density =1.73 g/cm³ | ||
|MolVolume = | |MolVolume = | ||
|Molweight =174 | |Molweight =174.4 g/mol | ||
|Transparency =translucent | |Transparency =translucent | ||
|Cleavage =perfect | |Cleavage =perfect | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices =n<sub>x</sub> = 1 | |Refractive_Indices =n<sub>x</sub> = 1.456<br>n<sub>y</sub> = 1.476<br>n<sub>z</sub> = 1.502 | ||
|Birefringence =Δ = 0 | |Birefringence =Δ = 0.052 | ||
|optical_Orientation =negative | |optical_Orientation =negative | ||
|Pleochroism = | |Pleochroism = | ||
Revision as of 14:59, 20 December 2011
| Lansfordite[1][2] | |
| Mineralogical name | Lansfordite |
| Chemical name | Magnesium carbonate pentahydrate |
| Trivial name | |
| Chemical formula | MgCO3•5H2O |
| Other forms | |
| Crystal system | monoclinic |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | |
| Density (g/cm³) | 1.73 g/cm³ |
| Molar volume | |
| Molar weight | 174.4 g/mol |
| Transparency | translucent |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | hardly soluble in water pH about 10 |
| Crystal Optics | |
| Refractive Indices | nx = 1.456 ny = 1.476 nz = 1.502 |
| Birefringence | Δ = 0.052 |
| Optical Orientation | negative |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Carbonate
Weblinks[edit]
- ↑ http://webmineral.com/data/Lansfordite.shtml viewed on 09/07/2011
- ↑ http://www.mindat.org/min-2324.html viewed on 09/06/2011