Moonstone
| Colour | White, Clear |
|---|---|
| Mohs hardness | 6–6.5 |
| Lustre | Vitreous to pearly (adularescent) |
| Streak | White |
| Crystal system | Monoclinic |
| Transparency | Transparent to translucent |
| Cleavage | Perfect |
| Fracture | Conchoidal to uneven |
| Chemical formula | (K,Na)AlSi₃O₈ |
| Specific gravity | 2.55–2.61 |
What is Moonstone?
Moonstone may refer to:Moonstone (gemstone), a sodium potassium aluminium silicate Moonstone as belomorite, one of the varieties of plagioclase Moon rock, a rock which was once part of the Moon
How to identify Moonstone
- Lustre: Vitreous to pearly (adularescent).
- Hardness: Mohs 6–6.5 — about as hard as a steel knife.
- Streak: White.
- Habit: Monoclinic crystal system.
Moonstone in different forms
Stones often confused with Moonstone
Frequently asked questions
How hard is Moonstone?
Moonstone is Mohs 6–6.5 on the hardness scale.
What colour is Moonstone?
Moonstone is typically white, clear.