Moonstone
At a glance
- Type
- Mineral
- Group
- Silicate
- Crystal system
- Monoclinic
- Hardness
- Hard (5.5 to 7.5)
- Density
- Medium (2.5 to 3.2)
- Occurs in
- Igneous rocks, Metamorphic rocks
- Foliation
- Not layered
- Colour
- Colourless, White, Blue
- Lustre
- Glassy, Pearly
- Use
- Gemstone, Jewellery
- Difficulty in WildGuessr
- Medium
Did you know?
- The floating blue glow of moonstone, called adularescence, comes from thin alternating layers inside the feldspar.
- Ancient Romans believed that the glow of moonstone waxed and waned with the phases of the Moon.
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 Q430034 · All stones · All entries