Wörterbuch (en): Tufa / Calcareous tufa
de:
Kalktuff (m) / Quellkalk (m) / Quelltuff (m) / Bachtuff (m)
fr:
Tuffeau (m)
it:
Tufo
es:
Toba (f)
A young, porous, secondary type of natural stone. It is a secondary type of stone due to the second sedimentation of primary limestone sediments after chemical carbonic acid solution weathering and precipitation. The stone has a generally good resistance to weathering and stone masonry workability.