Rosewood is generally lighter than Lignum vitae. While the density of rosewood can vary, it typically ranges from 0.65 to 0.85 grams per cubic centimeter (g/cm³). In contrast, Lignum vitae, also known as ironwood, is one of the densest woods in the world, with a density that can exceed 1.2 g/cm³. This significant difference in density is due to the unique cellular structure of Lignum vitae, which contains a high concentration of hard, interlocking cells that make it extremely heavy and durable. The heavier weight of Lignum vitae makes it more suitable for applications requiring high strength and resistance to wear, such as in the construction of machinery and tools.