Yes. They are made out of granite. From a physics perspective: when a curling rock hits another one straight-on, the collision is nearly inelastic, so almost all of the energy of the first rock is transferred to the second. This first rock does not bounce backwards, like it would if it were a ball.
In each curling end there are eight curling stones for each team--16 total.
The best curling stones are made of granite from Scotland or Whales
The Curling Stones - 2006 was released on: USA: 6 September 2006 (Los Angeles, California)
Curling
Granite
They are mede of granite that usually comes from Scotland or Whales
Curling
44 lbs
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The central concept of curling is sliding heavy stones down a long sheet of ice. It would be difficult to slide the stones on anything but ice.
Curling is a sport. Plot: Sending stones over the ice to get as close as possible into the center of the gamefield.
42X9=378 pounds