Corsi Collection of Decorative Stones

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view of stone 642

Corsi 642, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 642  
Name and quarry location: Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy  
Geological description: Ignimbrite. A devitrified welded rock containing megacrysts of simple and lamellar-twinned feldspars, smaller crystals of ferromagnesian minerals, and fine-grained rounded clasts. The compression of the shards is evident in the side of the specimen.  
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Corsi's classification: Class 8. Volcanic stones; i. Stones from Vesuvius  
Corsi's text: 155.22 Pietre del Vesuvio  

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