from The Century Dictionary and Cyclopedia
- n. In petrography, a name employed in France and Belgium for a fine-grained argillaceous sandstone, frequently calcareous, colored green or gray by glauconite. Sometimes applied to a friable granular chalky limestone.
Sorry, no etymologies found.
Cabernet franc grown in a limestone soil called tuffeau yields the big guns.
The russet schist and white tuffeau stone give the edifice an unusual charm.
The russet schist and tuffeau stone give the edifice a particular charm.