Anthracite
At a glance
- Type
- Rock
- Group
- Metamorphic rock
- Crystal system
- None (a rock)
- Hardness
- Soft (Mohs under 3)
- Density
- Light (under 2.5 g/cm³)
- Occurs in
- Metamorphic rocks
- Foliation
- Not layered
- Colour
- Black
- Lustre
- Glassy
- Use
- Fuel
- Difficulty in WildGuessr
- Medium
Did you know?
- The name anthracite comes from the Greek anthrax, meaning coal.
- Anthracite burns with almost no smoke and a short blue flame, so it was prized for heating homes.
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 Q182458 · All stones · All entries