From Wikipedia: "Kamagong or "Mabolo" is a fruit tree found only in the Philippines, the wood of which is extremely dense and hard, and famous for its dark color. It belongs to the ebony family (genus Diospyros), and like many other very hard woods is sometimes called "iron wood" so called because its wood is iron-like and nearly unbreakable, hence the term "ironwood". The word Mabolo is Filipino for hairy and describes the fruit's hairy exterior."
It's also illegal to export out of the Phillipines without special permits because it is a rare tree. . .