Topaz: hardness, streak, luster and crystal system
The properties that identify Topaz: its Mohs hardness, luster, streak colour and crystal system.
| Mineral | Mohs hardness | Luster | Streak | Crystal system |
|---|---|---|---|---|
| Topaz | 8 (defining mineral) | Vitreous | Grayish White | Orthorhombic |
Common questions
- How hard is Topaz on the Mohs scale?
- 8 (defining mineral).
- What luster does Topaz have?
- Vitreous.
- What colour is the streak of Topaz?
- Grayish White.
- What crystal system does Topaz have?
- Orthorhombic.