Gorgeyite
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Gorgeyite[1][2] | |
Mineralogical name | Gorgeyite, Görgeyite, Mikheevite |
Chemical name | |
Trivial name | |
Chemical formula | K2Ca5(SO4)6•H2O |
Other forms | |
Crystal system | monoclinic |
Crystal structure | |
Deliquescence humidity 20°C | |
Solubility (g/l) at 20°C | |
Density (g/cm³) | 2,95 g/cm3 |
Molar volume | 304 cm3/mol |
Molar weight | 872,98 g/mol |
Transparency | |
Cleavage | |
Crystal habit | |
Twinning | |
Phase transition | |
Chemical behavior | |
Comments | |
Crystal Optics | |
Refractive Indices | nx= 1,560 ny = 1,569 nz = 1,584 |
Birefringence | Δ = 0,024 |
Optical Orientation | positive |
Pleochroism | |
Dispersion | |
Used Literature | |
{{{Literature}}} |
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Weblinks[edit]
- ↑ http://webmineral.com/data/Gorgeyite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-1748.html viewed on 29/07/2010