Corundum: hardness, streak, luster and crystal system
The properties that identify Corundum: its Mohs hardness, luster, streak colour and crystal system.
| Mineral | Mohs hardness | Luster | Streak | Crystal system |
|---|---|---|---|---|
| Corundum | 9 (defining mineral) | Adamantine to vitreous | Colorless | Trigonal |
Common questions
- How hard is Corundum on the Mohs scale?
- 9 (defining mineral).
- What luster does Corundum have?
- Adamantine to vitreous.
- What colour is the streak of Corundum?
- Colorless.
- What crystal system does Corundum have?
- Trigonal.
Related
- Mineral identification properties
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