Corsi Collection of Decorative Stones

view of stone 659

Corsi 659, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 659  
Name and quarry location: Pietra dell'Etna, from Mt. Etna, Catania, Sicily, Italy  
Geological description: Volcanic breccia with sub-angular clasts of altered fine-grained basic rock and some of vesicular rock. Vesicles have carbonate infills, and some are surrounded by reaction rims which perhaps indicates magma mixing. The streaky texture suggests some plastic deformation.  
Further information:

Corsi's classification: Class 8. Volcanic stones; ii. Stones from Etna  
Corsi's text: 157.15 Pietra dell'Etna  

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