October 06, 2013 at 04:18AM

A curling rock is made of rare, dense granite quarried on Scotland’s Ailsa Craig. Each rock weighs 19.1kg a... #curlinghttp://bit.ly/15TLuKV

— Douglas T (@JeepCruzer) October 6, 2013

via Twitter https://twitter.com/JeepCruzer JeepCruzer A curling rock is made of rare, dense granite quarried on Scotland’s Ailsa Craig. Each rock weighs 19.1kg a... #curlinghttp://bit.ly/15TLuKV