How much is the mammoths tusk weigh?

The weight of a mammoth's tusk can vary depending on the species of mammoth and the individual tusk. On average, mammoth tusks can weigh anywhere from 50 to 200 pounds (23 to 91 kilograms). Some exceptionally large tusks from the woolly mammoth (Mammuthus primigenius) have been known to weigh over 200 pounds (91 kilograms).