Corsi Collection of Decorative Stones

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view of stone 515

Corsi 515, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 515  
Name and quarry location: Diaspro di Volterraio, from Volterraio, island of Elba, Livorno, Tuscany, Italy  
Geological description: A siliceous argillaceous deposit, perhaps a deep sea red clay.  
Comments: It is also possible that this is a ferruginous radiolarian chert, or a fine-grained calcareous deposit that has been silicified by igneous activity in the region of Volterraio.  
References:  
Further information:
 


Corsi's classification: Class 1. Marbles; Section 6. Argillaceous stones; i. Common clays  
Corsi's text: 129.16 Diaspro di Volterrajo  

Full entry in English

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