All rocks have an interesting geological history. Only a few rocks are important in human history. People have been kissing the Blarney Stone for centuries.
- Plymouth Rock was a traveler, like the Pilgrims. It is a glacial erratic.
- Some sources say that the Blarney Stone is a bluestone, but that’s not a rock type. The British call a rock of any origin that has been brought in from elsewhere a bluestone.
- Ayer’s Rock rises above the flat Australian Outback. The rock is a sacred site to the native people. Ayer’s Rock is a World Heritage Site.
Explore More/Show What You Know/Can You Apply It?
With the links below, learn more about a few famous rocks. Then answer the following questions.
- Livescience, World’s Most Famous Rocks (article): http://www.livescience.com/29844-worlds-most-famous-rocks.html
- About.com Geology, Plymouth rock (article): http://geology.about.com/library/bl/images/blplymplate.htm
- Blarney Castle, Kiss the Blarney Stone (article): http://www.blarneycastle.ie/pages/kiss-the-blarney-stone
- What type of rock is Plymouth Rock? How do rocks of that type form?
- What is the geologic history of Plymouth Rock? Why does the rock break fairly easily?
- What type of rock is the Blarney Stone? Which of the major rock types is that?
- What is the legend of the Blarney Stone?
- Why is Ayer’s Rock famous? What’s the geological history of the rock?