What is "spalting"

n. (context woodworking English) Any coloration of wood, either living or dead, by fungus, which is considered visually or texturally appealing. Biochemical responses by the tree are not included within the scope of spalting.

Spalting is any form of wood coloration caused by fungi. Although primarily found in dead trees, spalting can also occur in living trees under stress or even in thriving trees. Although spalting can cause weight loss and strength loss in the wood, the unique coloration and patterns of spalted wood are sought after by woodworkers.