With the Winter Olympics in full swing, there’s one sport that makes geologists lean forward in their seats — Curling! Why? Because the real MVP might just be the rock itself. What Is Curling? Curling is played by two teams of four. Players take turns sliding eight stones down an ice sheet towards a circular target called the house. Points are scored for the stones that finish closest to the centre. But here’s the twist: those stones aren’t just any rocks. They’re made from a very special granite-like material with an incredible geological story. The Two Tiny Places That Supply the Olympic Stones...