Tourmaline
At a glance
- Type
- Mineral
- Group
- Silicate
- Crystal system
- Trigonal
- Hardness
- Hard (5.5 to 7.5)
- Colour
- Black, Pink, Green
- Lustre
- Glassy
- Use
- Gemstone
- Difficulty in WildGuessr
- Medium
Did you know?
- When heated or squeezed, tourmaline builds up an electric charge and can pick up light dust.
- Dutch traders called it the ash puller, because a warmed crystal drew ash out of their pipes.
Could you guess it from clues?
WildGuessr picks a secret animal, plant, fungus, stone, prehistoric creature or space object and you ask yes-or-no questions about it, such as its group or where it grows. The fewer clues you need, the more points you score.
Similar stones
Classification, names and conservation status come from Wikidata (CC0), the photo from Wikimedia Commons. Wikidata Q179911 · All stones · All entries