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BURR STONE - France

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Home > MINERALS > UNUSUAL ROCKS AND MINERALS - WEIRD AND WONDERFUL !
  
FRENCH BURR STONE 
 
Fragment of stone used to make millstones
 
Marne Valley, Northern France
  
A fragment of quartz rock known as French burr stone (or buhr stone), from the Paris Basin. In the 18th and 19th centuries it was extensively quarried for the manufacture of millstones as it was particularly suitable for fine grinding due to its cellular texture and rough surface. It was exported to all parts of Europe and North America.
  
Unlike Derbyshire millstones, the French burr millstones were not cut from one piece, but built up from wedge-shaped sections cemented together and bound with iron bands.
   
The stone is relatively young. It is a variety of quartz that was formed in a freshwater environment in the Tertiary era.
  
Presented in a lidded gift box.
 
Click on a picture for a larger image
Size:  10 x 8 x 1.5 centimetres
Weight: 167 grams

PRICE: £16.00