Corsi Collection of Decorative Stones

view of stone 639

Corsi 639, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 639  
Name and quarry location: Pietra del Vesuvio, from Mt. Vesuvius, Naples, Campania, Italy  
Geological description: Volcanic breccia. This slightly altered polygenetic volcaniclastic rock has clasts/tephra which include alkali volcanic types, sediments and possible skarn fragments. It is poorly sorted and structureless, and may be an ignimbrite.  
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Corsi's classification: Class 8. Volcanic stones; i. Stones from Vesuvius  
Corsi's text: 155.19 Pietre del Vesuvio  

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