Rocks and Metals

large rcok with chimney in background

The ground beneath your feet is a natural treasure store, containing rocks, metals and minerals which have been essential to our everyday lives for thousands of years. 

Dig deeper to discover why tin is found at Geevor and learn about other useful metals and beautiful minerals found in Cornwall.

 

Photograph reproduced with the kind permission of Pat Comber

 

Amethyst (SiO2)

Click to see a larger version of this imagelarge amethyst mineralAmethyst has been used for thousands of years to make jewellery and is still a popular gemstone.


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Killas

Click to see a larger version of this imagekillas rock sample

The metamorphic rock surrounding a Granite intrusion is in Cornwall, is known as Killas or Greenstone.


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Metal Alloys

Click to see a larger version of this imagepweter bottallack dinner service

An alloy is two or more metals mixed together.


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The Rock Cycle

Click to see a larger version of this imagediagram of the rock cycle

The Earth’s rocks do not stay the same forever. 


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Comment left by Dave Rowlinson on 2009-10-14 17:54:00

Great website, very informative with lots of great images. Well done

Comment left by jessica on 2012-07-03 11:22:41

good website x

 

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