Minerals
TopGeneral Information
Stilbite is a tecto-silicate mineral that belongs to the group of zeolite minerals. The chemical formula is complex, because it is made from many different elements. Many times a small part of the calcium is replaced by sodium.[1]
TopChemical & Physical Information
| Trivial Name | Stilbite |
| Chemical Name | Calcium Aluminum Silicate Tetrakaidecahydrate |
| Chemical Formula | Ca2Al5Si13O36, 14H2O |
| Density | 2,15 g·cm-3 |
| Molar mass | ? |
| Hardness | 3.5-4 |
| Crytal system | Monoclinic |
| Unit cell | ? |
| Crystal habit | ? |
| Fracture | Uneven |
| Cleavage | Perfect [010] |
| Colour | White, red, yellow, brown or creamy. |
| Luster | Pearl |
| Streak | White |
| Opacity | Transparent to translucent |
| Safety | Safe |
| Extra | - |
Photos
(5 cm)
(3 cm)
Sources
[1] Wikipedia
[2] Specimen from my personal collection, photo taken by me.
