Minerals
TopGeneral Information
Kyanite, also named disthene, is an aluminium silicate that belongs to the group of nesosilicates.[1]
TopChemical & Physical Information
| Trivial Name | Kyanite |
| Chemical Name | Aluminium Silicate |
| Chemical Formula | Al2SiO5 |
| Density | 3,61 g·cm-3 |
| Molar mass | - |
| Hardness | 4-7 |
| Crytal system | Triclinic |
| Unit cell | - |
| Crystal habit | Pillars, fibrous |
| Fracture | Splinters |
| Cleavage | Perfect [100] |
| Colour | Bleu, white, grey, green or black |
| Luster | Pearl |
| Streak | White |
| Opacity | Translucent or transparent |
| Safety | Safe |
| Extra | Rarely has cat eye effect. |
Photos
(3 cm)
Sources
[1] Wikipedia
[2] Specimen from my personal collection, photo taken by me.
