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Festival of Geology 2020

Saturday 7th and Sunday 8th November 2020

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KAOLIN (CHINA CLAY) - Brittany, France

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Home > MINERALS > UNUSUAL ROCKS AND MINERALS - WEIRD AND WONDERFUL !

KAOLIN (CHINA CLAY)​​​​​​​

China Clay Pits, Berrien, Châteaulin, Finistère, Brittany, France

 

Kaolin, or china clay, is an ingredient in the production of china and porcelain, and also used in the manufacture of paper and other products.

 

Kaolin consists primarily of the clay mineral kaolinite, which is formed from the decomposition of feldspar crystals, and in the china clay pits of Cornwall and Brittany the decomposing feldspar comes from granite.

 

This sample was collected in 1986 and is from an old university collection. It is enclosed in a glass phial with a cork stopper.

 


Size:  7 centimetres long x 2.4 centimetres diameter
Weight:  27 grams

PRICE: £12.00