Topaz
At a glance
- Type
- Mineral
- Group
- Silicate
- Crystal system
- Orthorhombic
- Hardness
- Very hard (over 7.5)
- Colour
- Colourless, Orange, Yellow, Blue
- Lustre
- Glassy
- Use
- Gemstone
- Difficulty in WildGuessr
- Medium
Did you know?
- Its name is often traced to Topazios, an old name of a Red Sea island where gems were mined.
- Natural blue topaz is rare, so most blue topaz sold today is colourless stone treated with radiation and heat.
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 Q134985 · All stones · All entries