Syngenite
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| Syngenite[1][2] | |
| Mineralogical name | Syngenite, Kaluszite |
| Chemical name | Potassium calcium sulfate hydrate |
| Trivial name | |
| Chemical formula | K2Ca(SO4)2•H2O |
| Other forms | |
| Crystal system | monoclinic |
| Crystal structure | |
| Deliquescence humidity 20°C | |
| Solubility (g/l) at 20°C | 2.5 g/l |
| Density (g/cm³) | 2.57 g/cm3 |
| Molar volume | 127.8 cm3/mol |
| Molar weight | 328.42 g/mol |
| Transparency | transparent to translucent |
| Cleavage | perfect to distinct |
| Crystal habit | |
| Twinning | |
| Phase transition | |
| Chemical behavior | |
| Comments | |
| Crystal Optics | |
| Refractive Indices | nx = 1.501 ny = 1.516 nz = 1.517 |
| Birefringence | Δ = 0.016 |
| Optical Orientation | biaxial negative |
| Pleochroism | |
| Dispersion | 28.3° |
| Used Literature | |
| [Lide:1995]Title: CRC Handbook of Chemistry and Physics Author: Lide D.R.  [Dana:1951]Title: Dana's System of MineralogyAuthor: Dana J.D.
| |
Weblinks[edit]
- ↑ http://webmineral.com/data/Syngenite.shtml viewed on 29/07/2010
- ↑ http://www.mindat.org/min-3856.html viewed on 29/07/2010
Literature[edit]
| [Dana:1951] | Dana E.S. (eds.) Dana J.D. (1951): Dana's System of Mineralogy, 7, Wiley & Sons | |
| [Lide:1995] | Lide D.R. (eds.) Lide D.R. (1995): CRC Handbook of Chemistry and Physics, CRC Press | |