where are curling stones made

Most modern curling stones are made from very specific types of granite quarried in just two places in the world: Ailsa Craig in Scotland and Trefor in North Wales.

Quick Scoop: Where curling stones are made

• Main rock source – Ailsa Craig, Scotland:
  A small volcanic island about 10 miles off Scotland’s west coast supplies the famous Blue Hone and Ailsa Craig Common Green granites used for top‑level stones.

• Second source – Trefor, North Wales:
  The other approved granite comes from the Trefor quarry in North Wales, also chosen for its durability and low water absorption.

• Manufacturing locations:
  The best‑known maker is Kays Curling in Mauchline, Ayrshire (Scotland), which hand‑crafts stones for the Olympics and World Curling Federation events.

• Why only these places?
  Their granite is unusually dense and absorbs very little water, so it resists cracking and erosion from repeated freezing and impacts on ice.

In short: the granite comes mainly from Ailsa Craig (Scotland) and Trefor (Wales), and elite competition stones are then made in workshops such as Kays Curling in Ayrshire, Scotland.

Information gathered from public forums or data available on the internet and portrayed here.