This is a professionally stabilized piece of Siberian woolly mammoth ivory (Mammuthus primigenius). The ivory of this piece is literally rock-solidly stabilized, allowing you to cut across or along the cracks - it will not break, nor will it crumble. One cross-cut section is thicker than the other. Please carefully look at the pictures for precise dimensions. The colour of the ivory is white.
Geological epoch: Pleistocene.
Age: Over 10,000 years.
Origin: Sakha Republic (Yakutia).