Axinite
| Colour | Brown, Red, Yellow, Clear |
|---|---|
| Mohs hardness | 6.0–7.5 |
| Lustre | Vitreous |
| Streak | White |
| Crystal system | Triclinic |
| Cleavage | Good on {100} |
| Fracture | Conchoidal |
| Chemical formula | or |
| Specific gravity | 3.18–3.37 |
What is Axinite?
Axinite is a brown to violet-brown, or reddish-brown bladed group of minerals composed of calcium aluminium boro-silicate, (Ca,Fe,Mn)3Al2BO3Si4O12OH. Axinite is pyroelectric and piezoelectric.
How to identify Axinite
- Lustre: Vitreous.
- Hardness: Mohs 6.0–7.5 — about as hard as a steel knife.
- Streak: White.
- Habit: Triclinic crystal system.
Axinite in different forms
Stones often confused with Axinite
Frequently asked questions
How hard is Axinite?
Axinite is Mohs 6.0–7.5 on the hardness scale.
What colour is Axinite?
Axinite is typically brown, red, yellow, clear (Reddish brown to yellow to colorless. Blue, violet, grey).