Hiddenite
green · Spodumene family
| Also known as | Spodumene (Spodumene family) |
|---|---|
| Colour | Green |
| Mohs hardness | 6.5–7 |
| Lustre | Vitreous, pearly on cleavage |
| Streak | white |
| Crystal system | Monoclinic |
| Cleavage | Perfect prismatic, two directions {110} ∧ {10} at 87° |
| Fracture | Uneven to subconchoidal |
| Chemical formula | lithium aluminium silicate, LiAl(SiO 3 ) 2 |
| Specific gravity | 3.03–3.23 |
What is Hiddenite?
Hiddenite is a pale-to-emerald green variety of spodumene that is sometimes used as a gemstone.
How to identify Hiddenite
- Lustre: Vitreous, pearly on cleavage.
- Hardness: Mohs 6.5–7 — about as hard as a steel knife.
- Streak: white.
- Habit: Monoclinic crystal system.
Hiddenite in different forms
Stones often confused with Hiddenite
Frequently asked questions
How hard is Hiddenite?
Hiddenite is Mohs 6.5–7 on the hardness scale.
What colour is Hiddenite?
Hiddenite is typically green.