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natural history page title
Identifying rocks, minerals and fossils

Introduction
What is a rock?
What is a mineral?
What is a fossil?
Rock, mineral or 
    fossil?

Rock key
    Sedimentary
   
Igneous

   
Metamorphic
       
Marble / 
            quartzite

       
Crystal band 
            key

       
Gneiss / 
            schist

       
Layers key
       
Slate
       Unknown 
       metamorphic


   
Unknown
Mineral key
Fossil key
Helpful books

  
Unknown metamorphic rock

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image of garnet mica schist

Your specimen is a bit of a puzzle! Metamorphic rocks can be difficult to identify so why not try some of the other rock keys to see if you can find your specimen? If you need more help you could consult the staff at your local museum, examine the geology books at your local library, or search the Virtual Store which features rocks from The Potteries Museum & Art Gallery's collections.