Pumice
At a glance
- Type
- Rock
- Group
- Igneous rock
- Crystal system
- None (a rock)
- Hardness
- Medium (3 to 5.5)
- Colour
- White, Grey
- Lustre
- Dull
- Use
- Industry
- Difficulty in WildGuessr
- Medium
Did you know?
- Pumice floats on water because it is full of gas bubbles that froze into the cooling lava.
- Rafts of pumice from undersea eruptions can drift across the ocean for months or years.
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 Q180044 · All stones · All entries