The bog oak (Quercus robur) is not a separate species from the English oak, but instead refers to logs that have spent centuries, even millennia in the anaerobic conditions of bogs and swamp. The tannic acid reacts with the iron salts contained in the water, which not only discolors the wood, but also makes it very hard. The coloration can be very irregular, varying from light grey to dark yellow, dark brown, or from blue-grey to deep black. These partially fossilized oaks can be between 600 and 8,500 years old.
Dimensions: approx. 125 x 22 x 22 mm, Pen Blank for large fountain pens and rollerballs
Finely grained wood may contain imperfections such as open knots, bark inclusions, or cracks that are typical of the species. These flaws come from the way the tree has grown and are completely natural. They can usually be filled with low-viscosity cyanoacrylate (super glue) and wood dust.
