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Spalted English Walnut

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Blaflair2:
This is a board of it

Dakota Kid:
It is dark if it's heartwood. That is a pretty piece of walnut heartwood BTW.
These came from a 5" branch. There was no heartwood to speak of, which was a disappointment. All of the dark color came from fungus, which was an effort to make the plain wood I had a little more appealing. You can see it a little better in this photo.


It's blueish grey and purple-ish. Look at the end grain. You can see it looks like staining not a definitive separation of sap and heartwood. Trust me I wish it had this color when I cut it. I suppose next to mature heartwood it is't that impressive. To witness the change however, made it more appealing I guess.

Blaflair2:
Spaying is the black lines

Dakota Kid:
The black line spalting(like in your board) is one type referred to as zone lines. The lines are actually a build up of mycelium produced by the fungal colony. These zone lines occur as a result of the colony attempting to barricade itself and protect it's resources while in the presence of other colonies.

The type of spalting in the wood I have posted is known as pigmentation or sapstain. It is more common because it isn't as host specific as other types of spalting. It can range in color from blues and purples to reds and oranges depending on the fungus and the wood.

Walnut is not typically receptive to spalting of any kind. I assume it will only occur in the sapwood, as the commonly spalted woods are all white hardwoods.

Wikipedia is pretty cool. You should check it out sometime.

Blaflair2:
I still think spalted is spalted and fungus is fungus. Either way wear a mask

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