from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A coal-black marble, usually emitting a foetid smell when rubbed.
from the GNU version of the Collaborative International Dictionary of English
- n. A coal-black marble, usually emitting a fetid smell when rubbed; -- called also stinkstone and swinestone.
from The Century Dictionary and Cyclopedia
- n. The name given to varieties of calcareous spar (calcite), darkly colored by the presence of carbonaceous matter.
See anthracite. (Wiktionary)