- an ellipsoidal object made of polished granite, with an official weight of 38 to 44 pounds (17.2 to 20 kilograms), a top-mounted handle, and a concave bottom, leaving only the outer ring of the bottom to make contact with the ice in a game of curling: The rare granites used to make curling stones are quarried from only two places—a small Scottish island and a small Welsh village.
