Corsi Collection of Decorative Stones

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view of stone 719

Corsi 719, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 719  
Name and quarry location: Jasper, locality unknown  
Geological description: This appears to be a largely silicified oolitic ironstone or oolitic ironstone breccia. Swarms of sub-parallel dark brown fractures give the impression of wood grain.  
Comments: There is no clear evidence that this was wood, and so the specimen more correctly belongs with Corsi's 'diaspri' (jaspers).  
References:  
Further information:
 


Corsi's classification: Class 14. Quartz and its varieties; Species 3. Petrified wood  
Corsi's text: 180.6 Legni pietrificati  

Full entry in English

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Funded by Esmée Fairbairn Foundation Oxford University Museum of Natural History University of Oxford