Lignum vitae is hard and durable, and is also the densest wood traded (density: 1.23 g / cm); it will easily sink in water. On the Janka Scale of Hardness, which measures hardness of woods, lignum vitae ranks highest of the trade woods, with a Janka hardness of 4500 lbf (compared with African Blackwood at 2940 lbf, Hickory at 1820 lbf, red oak at 1290 lbf, Yellow Pine at 690 lbf, and Balsa at 100 lbf).
what type of wood will sink in water
Lignum vitae lignum vitae