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BIOTITE MICA (FINE SPECIMEN) - Norway

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BIOTITE MICA 
with feldspar
 
Saga II Quarry, Sagåsen, Telemark, Norway

  

A large and heavy specimen of black biotite mica with feldspar from a dyke of course-grained igneous rock known as a pegmatite.

  

Mica is a remarkable mineral. Due to weaknesses between the layers of atoms it splits easily in one direction - a property known as cleavage - and continued splitting creates thin, flexible sheets. The black variety is called biotite.

  

Please note: This specimen weighs 2.3 kilograms

   
Click on a picture for a larger image

Size:  19 x 18 x 5 centimetres
Weight:  2.3 kilograms

Optional metal stand (£1)

PRICE: £39.00
Sorry, this item has been sold or is out of stock
BIOTITE MICA (FINE SPECIMEN) - Norway
BIOTITE MICA (FINE SPECIMEN) - Norway BIOTITE MICA (FINE SPECIMEN) - Norway BIOTITE MICA (FINE SPECIMEN) - Norway BIOTITE MICA (FINE SPECIMEN) - Norway