Orthoclase: hardness, streak, luster and crystal system
The properties that identify Orthoclase: its Mohs hardness, luster, streak colour and crystal system.
| Mineral | Mohs hardness | Luster | Streak | Crystal system |
|---|---|---|---|---|
| Orthoclase | 6 (defining mineral) | Vitreous, pearly on cleavage surfaces | White | Monoclinic |
Common questions
- How hard is Orthoclase on the Mohs scale?
- 6 (defining mineral).
- What luster does Orthoclase have?
- Vitreous, pearly on cleavage surfaces.
- What colour is the streak of Orthoclase?
- White.
- What crystal system does Orthoclase have?
- Monoclinic.
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