Orthoclase
At a glance
- Type
- Mineral
- Group
- Silicate
- Crystal system
- Monoclinic
- Hardness
- Hard (5.5 to 7.5)
- Colour
- White, Grey, Pink
- Lustre
- Glassy, Pearly
- Use
- Industry
- Difficulty in WildGuessr
- Medium
Did you know?
- The name comes from Greek orthos, straight, and klasis, breaking, because it splits along straight, right-angled planes.
- Twinned orthoclase crystals are called Carlsbad twins, after Karlovy Vary, where they are found in granite.
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Classification, names and conservation status come from Wikidata (CC0), the photo from Wikimedia Commons. Wikidata Q21813710 · All stones · All entries