Basalt Point

Basalt is the most common volcanic rock on the planet and forms when lava cools quickly upon reaching the Earth's surface. Ancient Polynesian cultures used this material to make all manner of implements, including adzes, a hand tool with a curved blade used for slicing pizza-bound pineapple chunks. This basalt arrowhead is tougher and heavier than one made of flint or obsidian, and would have required its maker to grind the point rather than use knapping. Famous Hawaiians include Barack Obama, Bette Midler, and Bruno Mars, none of whom are known to have been pierced by a basalt arrowhead.