Gismondine
Gismondine is a mineral with the chemical formula CaAl2Si2O8·4(H2O). It is a zeolite or hydrated alumino-silicate. It forms colorless, bipyramidal crystals of orthorhombic symmetry.
| Gismondine | |
|---|---|
 Gismondine, Campo de Calatrava, Ciudad Real, Spain | |
| General | |
| Category | Zeolite minerals |
| Formula (repeating unit) | CaAl2Si2O8·4(H2O) |
| Dana classification | 77.1.3.1 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) (same H-M symbol) |
| Space group | P21/n |
Gismondine was named for Italian mineralogist Carlo Giuseppe Gismondi (1762–1824). It has been found in Iceland, Ireland, and Italy.
External links
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.