Why do all Olympic curling stones come from a small Scottish island? | BBC News

For more than 170 years, a small Scottish business has been crafting curling stones by hand using rock found on an island off the country’s west coast. Kays Scotland is the only company in the world accredited to produce the stones used for Olympic and World Championships matches. The granite - thought to be some of the strongest and densest ever discovered - is harvested from the island of Ailsa Craig roughly once every decade. Subscribe here: http://bit.ly/1rbfUog For more news, analysis and features visit: www.bbc.com/news #Curling #Scotland #BBCNews