Phyllite
At a glance
- Type
- Rock
- Group
- Metamorphic rock
- Crystal system
- None (a rock)
- Hardness
- Medium (3 to 5.5)
- Density
- Medium (2.5 to 3.2)
- Occurs in
- Metamorphic rocks
- Foliation
- Schistose (shiny flakes)
- Colour
- Grey, Black, Green
- Lustre
- Pearly, Silky
- Use
- Building
- Difficulty in WildGuessr
- Hard
Did you know?
- The name phyllite comes from the Greek word for leaf, after its thin, leafy layers.
- Phyllite is slate that was squeezed and heated further, until its tiny mica flakes grew just big enough to glint.
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 Q731880 · All stones · All entries