Magnesite: Difference between revisions
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|Crystal_Structure = | |Crystal_Structure = | ||
|Deliqueszenzhumidity = | |Deliqueszenzhumidity = | ||
|Solubility = 0 | |Solubility = 0.106 g/l | ||
|Density =3 | |Density =3.037 g/cm³ | ||
|MolVolume = | |MolVolume = | ||
|Molweight =84 | |Molweight =84.33 g/mol | ||
|Transparency =transparent to opaque | |Transparency =transparent to opaque | ||
|Cleavage =perfect | |Cleavage =perfect | ||
|Crystal_Habit = | |Crystal_Habit = | ||
|Twinning = | |Twinning = | ||
|Refractive_Indices =n<sub>o</sub> = 1 | |Refractive_Indices =n<sub>o</sub> = 1.700-1.719<br>n<sub>e</sub> = 1.509-1.527<br> | ||
|Birefringence =Δ = 0 | |Birefringence =Δ = 0.191-0.199 | ||
|optical_Orientation =perfect | |optical_Orientation =perfect | ||
|Pleochroism = | |Pleochroism = | ||
Revision as of 15:00, 20 December 2011
| Magnesite[1][2] | |
| Mineralogical name | Magnesite |
| Chemical name | Magnesium carbonate |
| Trivial name | |
| Chemical formula | MgCO3 |
| Other forms | |
| Crystal system | trigonal |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | 0.106 g/l |
| Density (g/cm³) | 3.037 g/cm³ |
| Molar volume | |
| Molar weight | 84.33 g/mol |
| Transparency | transparent to opaque |
| Cleavage | perfect |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | very slowly soluble in 2M HCl |
| Crystal Optics | |
| Refractive Indices | no = 1.700-1.719 ne = 1.509-1.527 |
| Birefringence | Δ = 0.191-0.199 |
| Optical Orientation | perfect |
| Pleochroism | |
| Dispersion | |
| Used Literature | |
| {{{Literature}}} | |
back to Carbonate
Weblinks[edit]
- ↑ http://webmineral.com/data/Magnesite.shtml viewed on 09/06/2011
- ↑ http://www.mindat.org/min-2482.html viewed on 09/06/2011