Bassanite: Difference between revisions
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Revision as of 14:49, 20 December 2011
Bassanite[1][2] | |
Mineralogical name | Bassanite |
Chemical name | Calciumsulfate hemihydrate |
Trivial name | |
Chemical formula | CaSO4•0.5H2O |
Other forms | |
Crystal system | monoclinic |
Crystal structure | |
Deliquescence humidity 20°C | |
Solubility (g/l) at 20°C | 3.0 g/l |
Density (g/cm³) | 2.7 g/cm3 |
Molar volume | 55.04 cm3/mol |
Molar weight | 145.15 g/mol |
Transparency | transparent to translucent |
Cleavage | |
Crystal habit | |
Twinning | |
Phase transition | |
Chemical behavior | |
Comments | hardly soluble in water |
Crystal Optics | |
Refractive Indices | no = 1.558 ne = 1.586 |
Birefringence | Δ = 0.028 |
Optical Orientation | positive |
Pleochroism | |
Dispersion | |
Used Literature | |
{{{Literature}}} |
back to Sulfate
Weblinks[edit]
- ↑ http://webmineral.com/data/Bassanite.shtml seen on 29.07.2010
- ↑ http://www.mindat.org/min-557.html seen on 29.07.2010