Variscite
| Colour | Green, Blue, Yellow, Brown |
|---|---|
| Mohs hardness | 4.5 |
| Lustre | Vitreous to waxy |
| Streak | White |
| Crystal system | Orthorhombic |
| Transparency | Transparent to translucent |
| Cleavage | [010] perfect |
| Fracture | Conchoidal to splintery |
| Chemical formula | AlPO 4 ·2H 2 O |
| Specific gravity | 2.57 to 2.61 |
What is Variscite?
Variscite is a relatively rare hydrated aluminium phosphate mineral (AlPO4·2H2O). It is sometimes confused with turquoise; however, variscite is usually greener in color. The green color results from the presence of small amounts of trivalent chromium (Cr3+).
How to identify Variscite
- Lustre: Vitreous to waxy.
- Hardness: Mohs 4.5 — soft; a knife will scratch it.
- Streak: White.
- Habit: Orthorhombic crystal system.
Variscite in different forms
Stones often confused with Variscite
Frequently asked questions
How hard is Variscite?
Variscite is Mohs 4.5 on the hardness scale.
What colour is Variscite?
Variscite is typically green, blue, yellow, brown (Pale to emerald-green (pale green in transmitted light), green, blue green, yellow green, pale shades of brown or yellow).