Crystallized titanium has been treated with a special chemical process that causes crystals to grow on its surface, creating a 3D effect when light reflects off the crystals at different angles. This process can create a visually striking and unique appearance on a completely smooth surface, making it an interesting choice for jewelry. Some of the pros of using this type of crystallized titanium for jewelry could include: Unique look: The 3D effect created by the crystals reflecting light at different angles can create a visually striking and unique appearance. Durability: Titanium is a strong and durable material, making it a good choice for jewelry. One con of using this type of crystallized titanium for jewelry is that the crystals are not as durable as the underlying titanium material, and may require special care to maintain their appearance.