Natures artistry. The wood shows black or coloured lines in what appears to be a random way.
Spalted wood can be very attracive and makes exciting and sought after bowls.
It is believed that the effect is produced by the many types of fungi in the wood. Where different types of fungi meet then a line may be produced at the boundary between the two.
Spalted wood has to be selected very carefully as eventually the fungi will cause it to soften.
My name for spalted wood with a marble like appearance
The rim of a bowl or vessel can be made to retain the bark or the natural shape of the outer branch.
It is best to use wood which has been cut in the winter when the tree is not growing - as the layer under the bark is at its strongest then so the edge is more secure. These bowls are delicate but very attractive.
These are the lumpy growths which are often seen on the bark of many trees.
They are usually started by insects or animals grazing on the tree. This causes the tree to change its growth pattern and produce woody lumps often with bark and many knots in them. There often needs to be an element of luck in the selection of a suitable piece of burr to make a bowl.
Half log bowl
Most of my bowls are made from logs which I cut vertically through the centre to produce half rounds. The centre of the log will be roughly where the rim of the bowl is. This usually shows the beauty of the wood to best advantage. Natural edge bowls are produced in reverse with the base of the bowl roughly from the centre of the log.
In some woods the grain may curl back on itself or twist causing light to be reflected from the surface giving a quilted appearance. For example Fiddleback Sycamore or quilted Maple
*** More woody ramblings to be added soon ***
"See the wood from the trees"