Kyanite
At a glance
- Type
- Mineral
- Group
- Silicate
- Crystal system
- Triclinic
- Hardness
- Hard (5.5 to 7.5)
- Density
- Heavy (3.2 to 5)
- Occurs in
- Metamorphic rocks
- Foliation
- Not layered
- Colour
- White, Green, Blue
- Lustre
- Glassy, Pearly
- Use
- Gemstone, Industry
- Difficulty in WildGuessr
- Hard
Did you know?
- Kyanite's name comes from the Greek word for dark blue.
- Its hardness depends on direction: about 4.5 along the blade and about 6.5 across it.
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Classification, names and conservation status come from Wikidata (CC0), the photo from Wikimedia Commons. Wikidata Q193450 · All stones · All entries