What does "melaleuca steel" mean in katana collecting?
Updated Mar 2026
"Melaleuca" is a transliteration of the Chinese term describing the layered, bark-like grain pattern that appears on repeatedly folded steel after polishing. During the forging process, two or more steel types are folded together multiple times, creating dozens to hundreds of thin laminated layers. When the blade is ground and polished, these layers emerge as organic, flowing surface textures that visually resemble tree bark or wood grain. Because the folding is done by hand, no two melaleuca blades produce the same pattern, making each collectible piece genuinely unique. This visual individuality - combined with the structural result of combining harder and softer steel layers - is a primary reason collectors seek out melaleuca-forged katana for display.